{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1138968",
    "entityType": "User",
    "nonce": "0xc7c08a3708c9551dfb4b4c2be8d37c565b874223ad7d23c55223297308b65557",
    "signature": "0x4aa551a7a03775fe23b35aef12c38601c10f939377b6bdc1e7131b089919c2bc56aa0bccbe2a4b27742579b3a9983e52936c2ddd56f7a1bdd705710dfe09969d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}