{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0x5ea6f0e0960b8eb5f6ccb38436193064c8328033102abe9e534ef59f1a15f0aa",
    "signature": "0xedf072d5df5e294489108f43cccffc28cfa4a874c40e6ee46308f14a31b8e55031a20a9ce61bf4c7591ef1793c5412a02bf3f84f57a8ac75dcd49698a4aca12d1c",
    "signer": "0xE09A95aA63d8B1AE975406d646074B73ffBD4ACC",
    "userId": "27841"
  }
}