{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148293",
    "entityType": "User",
    "nonce": "0x113fe3cf6b6930c7a4eda7c7217989af7552bcc5feeadb0d2d0208f441e044f6",
    "signature": "0x3c2a6dc3486fe4335eaf0634d3ed4fdfb8915a6fa930626a0dd9d0073eb5158d7dd6c2b81488c8922b707074c227db8c0850b5f0bdd8c391c5194c2ed724b1ed1b",
    "signer": "0x5bB9Cd295E2E2Ec2Da049D53c19449e5BD75e200",
    "userId": "354197891"
  }
}