{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x32159673a491e9b767272a885de09796948e1e9cd58fa507cb571ba049549bce",
    "signature": "0xb49e06da284b5943f5bad22eace7264eb2bf96c584e79d83a05c467cec1109f6768c00a9b7bc60f6b2458fe58ca53825dcf3960ada55a5258075bd53a8e832cd1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}