{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "534",
    "entityType": "User",
    "nonce": "0xeeb782c51822e16569335d0da00ab520d4b3e16309939448c55d8e9757eafc7a",
    "signature": "0x1bbb43ddd6c594725436b3e0deec6c3114c904d016c91c81a5dc1dfdaf26ae0f06af866ceeeec9e21792f291651be016a0f76ebb15ec733b58f38dd1e56db9b41b",
    "signer": "0x222534475146193b99B68F2E3830ED2b44307C2D",
    "userId": "991417453"
  }
}