{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1786871",
    "entityType": "User",
    "nonce": "0x3deda75eb8bdd8237e0145d8928bc32d12b2a2eee5a7a2817573e44ad544bb2f",
    "signature": "0xfae53f548f90e03bcc1125423dba38b82c5500d43c6bc7e3c17ac616ad76fb397cef09cf34e9e59d9238b2917a79b99ba42ecd3686a94ba2018e711c260e88d31b",
    "signer": "0x546643B8F8164fB6dC42c93F65D31C17676Cd995",
    "userId": "305541868"
  }
}