{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307",
    "entityType": "User",
    "nonce": "0xe48ba80a3459462a29805b0046fbd82d64134da211454687a609131718ae55d5",
    "signature": "0xcba5ee182584208f5000f222afbbbbd429092168208fd2ee70038cfde371095137c56109e6d7b62146c09e498f391b2c705d2471218eb70a1b84a8baebcd9f001b",
    "signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
    "userId": "354535"
  }
}