{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215727",
    "entityType": "User",
    "nonce": "0xae3c98e29a1f8cc35d79976fc390cfaf3699dc8d333e956e24f30d0d8ca367e1",
    "signature": "0x74126b2a5862129e71e4fce1c5c90455b7372296106a2555164fa2fe19e4d0ba6af53a925578fd78268ba8bbec6bcc75654bb559161161152d94318fd73a57e11b",
    "signer": "0xfe6022590e48C8eA51d706EbF4eAe799214A737c",
    "userId": "900610030"
  }
}