{
  "manageEntity": {
    "action": "Create",
    "entityId": "422242222",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"access_authorities\":[\"0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5\"],\"data\":{\"title\":\"SCHEINY   Lost In Motion\",\"genre\":\"Electronic\",\"track_cid\":\"baeaaaiqsea22pppftv4l5rlhvpj5n2yy6lc7oz6zpe3lsap7gmlqd4xpjkjjc\",\"access_authorities\":[\"0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5\"],\"duration\":247,\"orig_file_cid\":\"baeaaaiqsebyv2z7wrjdn3uhdgm5altxxd4fnucipsgw6j6h2gbqh4kz4a4ahw\",\"orig_filename\":\"SCHEINY - Lost In Motion (EXTENDED) V8.wav\",\"owner_id\":156145845}}",
    "nonce": "0xcff97032b8921a229ed80f2fcf638fd3ca797080dffa57b2469a997368618b41",
    "signature": "0x1a15e840a2a469f38ee91979b62d7512870070f4dcb4a93ef6382136155184b91e20124cc417b906f94c94470ba66b2cf093da2d94816f600cc808d9ad16d9271b",
    "signer": "0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5",
    "userId": "156145845"
  }
}