{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdc9b8e7aec3f834af1ce38b653ff88e07c68e84dbe2fe05a8dccaa97a8894f89",
    "signature": "0xcdbe51658cfe7bcca1d7411c04d0364cee1462873cc63110a22f0c23ca324f08173452455e5b9a24b107c078752f273f51ca37f7b05e1554c298ba52bed058ef1c",
    "signer": "0xBF9ed18e6F38B7ceC0B0623D1BD903136a5607Fa",
    "userId": "583901333"
  }
}