{
  "manageEntity": {
    "action": "Save",
    "entityId": "1055401703",
    "entityType": "Track",
    "nonce": "0x7bcf6baf9dfd63404846c27ee87277177d5548ff3eb82fe1627e841c71098200",
    "signature": "0xf515f032f6a2debeb99c002f9e68207c8ec9df711c6091a0b58c46ff1bd39f6502e7bf76f0953d40f9fabe015f68f7d8bcf687a375c9e80005b50a64e28609871b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}