{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "529409199",
    "entityType": "User",
    "nonce": "0x3e3ca757611c28a9112a3b96b0ed2d913fb5904b8792bb8ce2f310baafb4ed81",
    "signature": "0x0da31ee34493575233b480d96e1996d7f5cc10c86d1e3579b81a549a0a6a626937feb3fde19b6867d42a5bbd5cf7a5196b36a0475cfaf35b82d8962b205921041c",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}