{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x9a8451ad880903e3b7644d00ac3336675c1cf79de25f1633cfcba173ffd4cbd5",
    "signature": "0x08148443cd170812c0d810affc187c36406b8508307662b37b51d9c7dc355c845e416db5d3792474716d874007ac1fd055af6a3f060c5f25fdf570bf4900c5a11b",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}