{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0x4cd89c96c35cff0c1c9721edee1dc9d71f5bf4a716eb1609f7d630cb2c1bf541",
    "signature": "0xa7950e5e5485959ac39d177268270d0d5771a667ecbb21b51a1a5e4e376518911d72cc658006fec50bb60122defa6eb709dd05313ea7f1d13a993a5a216fe1781b",
    "signer": "0xA386423c4cD40942cbb64b9b605C317a465BD1EE",
    "userId": "356385717"
  }
}