{
  "manageEntity": {
    "action": "Save",
    "entityId": "1181813232",
    "entityType": "Track",
    "nonce": "0xd510255b17fa93e6b4775f13bb97d08da234e15fd9ba97f11e48d8f8351f6c2f",
    "signature": "0x451fb9d26e221fd5309dc664420b534df53eea18e3c21427250dc94ad833716a08853445cbc7daf131f7512969f4e9714c7557befb5db65ae4e0018fcc470d0b1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}