{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28328b552b0d493019860044a6dc9d8d5fa19ba30d3fae7daa583c1aba3cd7a1",
    "signature": "0xb94679965337cc2b1072b6cfc4b75ee70373929361a2da2343a00e98f4502dac3507a66c37dac19b9f55530290c69eabe94983ba54dce6a3fbcecf3bc8d913971c",
    "signer": "0xfb332C891cA330fdDf7157fa9EE2dBb24dC66a10",
    "userId": "194241040"
  }
}