{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "808453187",
    "entityType": "User",
    "nonce": "0x3969531b055e4559d382c132b8daeeb1289dd9a8ffcefdd87a445ce23a9063e1",
    "signature": "0xf148e27f50415c20053d9a1ee6c2cfb3ce24ee3ce000494ca8d427343fb8b68f3e7cbf2d1becb8082c5a94f38f9c78d3a50430db6a5680f029c0f6ce9d03e68d1c",
    "signer": "0x88B2f6C9f9D7E2B1115283bfFb346a67AAFb13dB",
    "userId": "230882769"
  }
}