{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1773",
    "entityType": "User",
    "nonce": "0x5ac829da1d2da470399af5d58976b5197c8744c7ae328bc5267be70f90e0a35f",
    "signature": "0xdc9b5cb2219f685495d1e1bc2d23afe0ebe4d69d081026aa16fced985fce2d8e721ca0912a9ad92a7d6c636bd0ad54b8fd953b6580a506d5293334c77b6107091c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}