{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103086",
    "entityType": "User",
    "nonce": "0xc393e33c1aec8a6f8dca66c26016949d10d6a0efed0b46648ec8ed96c9128a91",
    "signature": "0x8f0a9f6149a27e13fe54ae2bf2bc3531b7e8edd810f064aa03f889c6b22c64ab341589b66cb2e20de799e0b6a6f16af1e78e6eb6c20e53503ebab9cb4271fc911c",
    "signer": "0xa16E21B675BCaB501e407E716d506F7a99896406",
    "userId": "613617474"
  }
}