{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "869329246",
    "entityType": "User",
    "nonce": "0x5a61426f8ecb211c0024d053e9f16bfb07ab32713ede85a6580d28ac92cb1205",
    "signature": "0xffe48bb515890b7b39df47ae5c853e117ca21ca69045d14439e568d259de38ba42e8f1bb1b00faecc7171895ffe9f6a57c61f31d32eeaabcbe18587e31df84131c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}