{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb0eb96f4c4c6f642bf2f833afefd0be64340a7b0a7892c7906bb5e40afb5db0d",
    "signature": "0xcab5724948125f9fb2d7d4ddc0742d4725ac1da2cda8b4b591c799d7bc10191c63c07ff08eaa2a23176f3925a31caf975fa0a984ed041b5881865f8f706a14691c",
    "signer": "0xA61Ec758eD62E71769712843066E0D2AF592b23d",
    "userId": "556255982"
  }
}