Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13d40ce4bd25de0c32cda8be576986389216a542b6531813efb627534faafcd0' 
  AND token = 'buCE93YKs8O0mAEJgq5BK/fMTKhZrDs2fkHDwTdJY64=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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