{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0x494d08d6a21988f3137d0d0937cb8eb5bbe56f6acfefb07c19c974a908aa433e",
    "signature": "0x93792915dc34224ce09c66811e611729601cf6c669e178b8b1800b80f77e34ce2df0d4f5d7c548148e73160e8cab5a6b036d217312cf929196a5ca99297a403c1c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}