Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4aedbccc672816c6a3e1a071a70dfe45aa956a3655e9e92222907cc177e80632' 
  AND token = '81YIZIDvYqkgoA3mDtLFBCXBVFsQ8L8HukuxHZ3DB58=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}