{
  "manageEntity": {
    "action": "Save",
    "entityId": "58326",
    "entityType": "Track",
    "nonce": "0x119cf9c151ecf14be019486a53a920133808d4c19422f337eefce9d3deebc93c",
    "signature": "0x3053575a221f40a19ca055069e813dceff6ad07f79d381698cac065ea5a3bfdf7d2d783aaff5b28250eeddd8e6eb083f362e85b8f068c0c6dc45dd1bdfb562581b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}