{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906542957",
    "entityType": "User",
    "nonce": "0xcfbcc574b3d4f75e7fcafa16b8f18c5bf461637d448addb5920310baabc5043a",
    "signature": "0xcae75e418186a1b9cdea05565a71d4c41e93b98291ec5cbcdbcde830e2d483743d9105848f6249ec9d7230a3cb2185ac8a0179c8a0e9a1ece631fe237bb1819c1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}