{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x70bb5e0d1dd14b749e8b3e708c2c8a03cf8a4cdd993f3d2b23f8fa9d0a3690e4",
    "signature": "0x8040cd0ac2b135706d70304cbb96837957901a02a98ceec69969c44489f1d087335c15dd6bb3c292572c0d7ab6a36d4921ef65f8c699d452d9dee08b5baadce81c",
    "signer": "0x6Ee7842A432b779E1Bf51F27B824fe86161cee6c",
    "userId": "408407824"
  }
}