{
  "manageEntity": {
    "action": "Create",
    "entityId": "1066891991",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"access_authorities\":[\"0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5\"],\"data\":{\"title\":\"George Feely   House Music DEMO\",\"genre\":\"Electronic\",\"track_cid\":\"baeaaaiqseaq26ktjzwoudhfl4kxua2pnsokbcxk3n62qstcyuqrni5gomslio\",\"access_authorities\":[\"0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5\"],\"duration\":380,\"orig_file_cid\":\"baeaaaiqsedysna6igift5y65alfixbt4rgb4aw4x4yq34sj47j4y6fck64obs\",\"orig_filename\":\"George Feely - House Music DEMO.wav\",\"owner_id\":771561652}}",
    "nonce": "0x0479d986f53e7e454917ca93af9a0a44c1d39e6f269416a1ec6ed4564a17b8ea",
    "signature": "0x9bd761699dcd5123003190c677c5dcceb58475c71d2ff4735e4c217888b5c78d65bad8f3c34f665ea7f5dd99707b94ec4210f380d3548a5a0bc266b3954357181b",
    "signer": "0x8E6a0C5e8c93775D1F70Ac5591514A5E00BaC7f5",
    "userId": "771561652"
  }
}