{
  "manageEntity": {
    "action": "Save",
    "entityId": "286830175",
    "entityType": "Track",
    "nonce": "0xfc6a12cb3148e2cb972e4eb364e3ba783a14cf74c38a9604b291ec31ee95785e",
    "signature": "0xef016d3e64bd96158ecf1527a62833883b5d0cd140d790f90cb1251d94c920de2ba0abc2e42bf01070035c4a005a6c06ea2dcba65f54f25401ead67a150dd56b1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}