{
  "manageEntity": {
    "action": "Save",
    "entityId": "2048711133",
    "entityType": "Track",
    "nonce": "0xfb0a0a2c07c70f57b7198b97f7f989f35776a9acc221565a5c38abeb201b2613",
    "signature": "0x49cb3ec0e113f4b078ee47b752f8e34af6d4300042e7c192b165a37875541f3d3afb721d5a36cf033a0b29cca432dfab2efaaea9fd7c7aee754304f0f01217241c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}