{
  "manageEntity": {
    "action": "Save",
    "entityId": "1285251961",
    "entityType": "Track",
    "nonce": "0x6747a9fce88f848a90d08629509219ff6c0c3b3db39f77671ad6e42b0b8515a9",
    "signature": "0x93c1cfbc9f97f304b8a7daa403f34dfabb2160b63340c70adc14799a85e29d8965c46b10a8ce4d93f7d33de9787d1bebb76e6f559c27bac685de35eec5af432d1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}