{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5488",
    "entityType": "User",
    "nonce": "0x5f3d5da5f75684b99d8e5b5bf50501f80afa59e65ca08c39881f3414fed8824c",
    "signature": "0xd2f384d986883bf0a3dc7e08ab077f0c804e59d8a2e2d2feaace6187328766257e75711881ca1b1be622cabd90ca49d3ec210628fecbd133b39828099f45ff431c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}