{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275305",
    "entityType": "User",
    "nonce": "0x252e1be18b9c602c9b8876a69260ffb5daa3c5306119633569dd00090c37afcc",
    "signature": "0xfb155d23d35b1a19061fd9b1ecb3d03cd7cd7d6f202c0557bc48a95971b8306b1a6d20c6b9db6032ff4df32bd4b18618502b339e3dd6a7781f9854a68c8552321c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}