{
  "manageEntity": {
    "action": "Save",
    "entityId": "1309316086",
    "entityType": "Track",
    "nonce": "0xa20e9ce1f983cda6f0abf749b2b6b1f2ff63b2df15fa203dae27307fb5a5cc12",
    "signature": "0xe44db2cc2f20c6aa3fa0b83fbe6e6707e7bb58c44d3ee21100b64037a77dfc2e4dbe1a9d886037625064ec4a942e7d3ebb3a24abd5095b5c10ca6c4f436e35ea1c",
    "signer": "0x5A6DCd6E22135e4225594900c17114A7dAD01964",
    "userId": "580576096"
  }
}