{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "427997",
    "entityType": "User",
    "nonce": "0x7e46f427dc4d15c05f95ae54bfc2e57f35e2af028a49adcc272434c9352e409a",
    "signature": "0x8b3c7847ec4fe879617e503c7a9d4ed0a4da3336ea96f3f8265511844e88de3c4433d79f37a666be62405f99ac7fab02bbc375992591fc833f50377ee22faada1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}