{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x37eecdfc93dd33ecac114b4eeab09be537df9d2076074f10e608849f0b37b907",
    "signature": "0x5a1a38a52727278d8a24690f72311e9130c5081aacb97c5c72abc28cf247f0954ccbb0ba52c9251433da75b2ff40c52ab5d24ba428f305bb193101e8ba863b3b1b",
    "signer": "0x975699e892A0a2f2f16d2b8950Ac7C882B8EF555",
    "userId": "544952248"
  }
}