{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200316",
    "entityType": "User",
    "nonce": "0x1fbde0993227e24bd9990ca9056bedd050371bc232dfd8b9751eee3f33fa4850",
    "signature": "0x034ed70f93094d6bfb0c4bfc5a29be040a17902c8d9365d9d6815448fc30d3557cac5d3d2a1fbe16547d2ce3adea66f1c2b685eafae5490f847329f2b72186091b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}