{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2808e3fba36d40b7aac3b255dccdc42a2b0bb5adefbaa9d02c2bf118aff7c31d",
    "signature": "0x0dd22b0dc3460c22167b45ecc0acbc5c0627aa9595b40f243742c2d1d5c70a845d28e782bd94d78c73ac04b9a54d1748296491edddda08e7233473f0b2d795da1c",
    "signer": "0x328792F50caF0183cfCb5089c9f8dE46a41989Ea",
    "userId": "583778049"
  }
}