{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4a27e5c7b2f52df01563e8099dabd6f77b6b3403d12ddf897b0e6d3ee6d98803",
    "signature": "0x4240d32e1eb20e80586afe3ac46c49a32d460cf970753aaac0c552386d45490c437d10666ad01571e07ac9217c9d9bae6754bc0c3f6888509e52efa873c92e031c",
    "signer": "0xdC422De896Fb6f2Be03182bFe11336856d90e5bd",
    "userId": "49186073"
  }
}