{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "176490",
    "entityType": "User",
    "nonce": "0x6ec9749ea0d3c2095927c35c642f8b17b9b6200ff05cba8d10c5255856301021",
    "signature": "0xe219e7f3b4964da50e85fcd66107c0e665f700aa83fae27772aa01ef1ac0466e260152bcdb6a6c3ab94f24edf231aade9ba6fdfbb6426bcb8ebf94a13f4dbff21c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}