Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c65003f58b6beedef24f4fe51b0928806e1cb8b1eaf7b1ed090e33bb1588d03c' 
  AND token = 'LKrr9neHu/ynC19QspuhjsR0wFUJZvI9ILZ/1lEyq4s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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