{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937139185",
    "entityType": "User",
    "nonce": "0x561c48184f4a1750ff2d4217402e985122caf302dc24fb49ae89ad3914dae8fd",
    "signature": "0x8dc51d4e742c552a8d98d84eb0eeac8d39980eaf673d9d03d87e6b8acf4a13037ed559ce2c8557c2899a303920760cc43b79f2c8c2791fb28ea9e1bfa510876b1c",
    "signer": "0xaCEa944E637Ed70d0846f218FeF88B644E2AA918",
    "userId": "221007610"
  }
}