{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2af35158dea5d860e847b6de6c1b0a09bef78dc78a81661b031d69d90e2ce364",
    "signature": "0x3b0a8eb2c9518f65798ba0d61f2f78089c90b237498254e04a71ae23ab7796345c38aeacb45c5e3d6c7e57a9e7c572e03181673807e105ad6527d9fa7d3473161c",
    "signer": "0xA301d747958dCbd6bedDFA4997DA85DA27707533",
    "userId": "810985576"
  }
}