{
  "manageEntity": {
    "action": "Save",
    "entityId": "95520197",
    "entityType": "Track",
    "nonce": "0x70949d58fe5d9ea3bde157f369b71ce2abc45f39dc78503bb3165972633aaa6b",
    "signature": "0x00b92bc669b48b6e5c338681e2d6dd261868f558a44e24d2b57bf42928cc112f08f9db15fc7038897ab479606fa683b5c54242180c6682e999f47a2110a404f51b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}