{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49835",
    "entityType": "User",
    "nonce": "0x45881281c0b8a0b69a34ed0f96b6130f18ae6d81d4ba1d35fb57e49ea17f06a7",
    "signature": "0x33a8663bf9d214c049215b0e5d03b2577a5faa8b8b63b50ecca79b2e0c3ff93c736592cc515ae2ee4cee1469dbbfc5266d4d07ffd829cec023594284cbd9577e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}