{
  "manageEntity": {
    "action": "Save",
    "entityId": "1167233748",
    "entityType": "Track",
    "nonce": "0x0ec61af00e7bceb997c9dc25ca4957dc29e004f5a5ebb4fbcff3535caac226a1",
    "signature": "0x54b96a4e48d66c41c70a3d2ab073cee8084dfa389c9b6b40fd0cdfe4e8201d957c07b8f16452f1db16847d3af28e546fd588d8ce362520299746ac13af731eef1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}