{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xad1ee682525ff3e82463d1038d173d2266a3aecaf2d27e21b58461de3d5f6b07",
    "signature": "0x39bf396d578d692b88eee7e760c2a3c077f88703acb02aded166c6541f0e37e844cac7926408707b72e1658ed65fc954033992be47714aff2aae5d092a9d17b31c",
    "signer": "0xcE1000874CF7A0a7b16c35A55F7D6f10C607A868",
    "userId": "442277469"
  }
}