{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1645731",
    "entityType": "User",
    "nonce": "0xc0538b72f22e41f3595459713976e4a4bd058afe96be8a51d104bd9185f3cc86",
    "signature": "0x081f6fc2ecd2cb8a2b589d2087d4835c001243834c742f5789c8dd52cd17072a00aca49ea585a4f4c068ea21b98dbce53cdaaaf4c318311f372aa4ec2f5830341b",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}