{
  "manageEntity": {
    "action": "Save",
    "entityId": "88038917",
    "entityType": "Track",
    "nonce": "0x9a7eed109f324fb708bedbc341e7da81da79159f9342ee0842e0c6ad8bbaf3f1",
    "signature": "0x147f4fe50a83520ae34ea89f1277a2e9f858cfc87b9b72d530098f90d64db81230ced51047a58c011664045b7009922044e5584881e4c841c5e810ab29857e3a1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}