{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37757905",
    "entityType": "User",
    "nonce": "0xe5e1ed0ec287e0d33354b23d13958566899f601874d34afb0c7322e6a839774c",
    "signature": "0x43f1d7a9321591a72b5b674b538662027ca6a863a4013d68a6169b56690f9e4d1be30b09909d590d6da42012c4893aee2b6fe31117b3ceba4a3ab8930d786ac41c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}