{
  "manageEntity": {
    "action": "Save",
    "entityId": "114804",
    "entityType": "Track",
    "nonce": "0x10f69e005131c86f2df5b60d0673af11c23dd5a61ac9fb60615f6d5d06595e5e",
    "signature": "0x728652a2362e55e83e02e47f64cf82932f0b28021b579a09ca7c1ee6e634ef5c2bd49dbb5a471a458b28d2f48c9902c38fce901af6f8b70cca35f7f65603c9f01c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}