Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b4db9dcfa9cf440016ca003325f98ddad8a9765031c48b7c25db65ffffb5b9d' 
  AND token = 'FA4DpM4K/Oj5FT3JDbHYAcGk1tEMK8TpmWR11ITvL9w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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