{
  "manageEntity": {
    "action": "Save",
    "entityId": "2095636034",
    "entityType": "Track",
    "nonce": "0x2bc72cd64a328900e337d86fb9fc5416352622a05cf46c11d46c0466c9ab104f",
    "signature": "0xb2974a669005dcca7f2215b64f1d01e085340631930ab57af64b8f14149bd7ab036f47eb12dc1ab879a11e25221fc0248be5683c0717a469a4426d4f5d8a31b41b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}