Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c361754869d6fdcac4992844acb6a780fd55892899817b146ba3ce5caaf86943' 
  AND token = 'Gi2F4nxXNzhqv9Iz/mu3c8uan8LgfL93Ey9wOV1Du4k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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