{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15920",
    "entityType": "User",
    "nonce": "0x3c924fa960fb61a663fce353595d58547d955179e449c3bf2558e9823a1cb147",
    "signature": "0xba4169be08e40c411cb3299284c1f03baefd1429a00f5927b878c76aee93657853ec806c97e258683e148adf1f798caa120841545c4f9d48ffe99a89afb4e6751b",
    "signer": "0xF7F56DF4D8a2Ae2BF9Ca645DC684f84c37BbDaFe",
    "userId": "116272245"
  }
}