{
  "manageEntity": {
    "action": "Save",
    "entityId": "1106481559",
    "entityType": "Track",
    "nonce": "0xae6b73590cd0d09ab1ea88ad173d3933909aec3413786d83e2228dcdfc97dc32",
    "signature": "0x3db46445ff445e3ad1e29a756eba81fba78d2c4cde075885d1b59b5d69165a3a3adaff4e3a0e705762868d1567707d5ec44023c5a45c35c0647cab8026fbf6261b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}