{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222",
    "entityType": "User",
    "nonce": "0x40c30bd907f40bd1aef80c83e1396e07c6fd7a89f2a0793da1a95d4bfe9afb59",
    "signature": "0xc9ca3be69b0dbdaa2bd4f426a214352c351c31eb3301e1d9725d2119dab222fb6b2e018f9377734796e1c044a85cc44c22c03986039ee6379ed5f4f99bd03b931c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}