{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775274",
    "entityType": "User",
    "nonce": "0x42a812faf18ae25ea58e4bd30bf0a3bdf4746da1b31ca6ff38c7dd713f75fa76",
    "signature": "0x8e558db3ced660b7c473868dd82cea6bac20d7038cb84e1b464ac8c030fdce636ab0c75e0188e5ea5f2f0845a2105b02ce1f12e9fdad6a2a55c68940325e31271b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}