{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x749c00567b65e33cf88447c458e76b102bd51cd28dbe13fc959200dfab129746",
    "signature": "0x2069f6f15af1a00bc401c7136c4f752118d74dd6bbe2c5df1241093800a9cf7b666503f9dc2ceb28eb1fbf6a2e28b88d8a0bde46360d8e93d21e4049c8496a9f1b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}