{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6959204c5ab0d4ec9b63648abf2ab92bb039ffe59c6d29a1a83163082393ed0b",
    "signature": "0x64d756a328c5092c402272c300743419f0b253f27060decdb889469a3bc24cf64063ee9e7cceeb1a727421f7045a1101e2a8ce8babda9c39ae8416918c40fe301b",
    "signer": "0x69693F4BB41084294f981d2BaEb21ac292F81DDe",
    "userId": "800813957"
  }
}