{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325576",
    "entityType": "User",
    "nonce": "0x3efd14998cf5b86917915f96e87e95b67a9198dd0d30c9c6d3478e03edc9bc53",
    "signature": "0x4fb72b85937bcd46a4450495d4db3d0ef68d8baca6138d6a9fb55ce0c876c632565a70131c8f6b559df3a7f4f6d2a8102c6780f37a511912ccd3fc7c0e613d961c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}