Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1aaf28d78b99fdcfb1e7b70488908ae62a3fab717417d366dd8e01d617eab46e' 
  AND token = 'pBSMZjITuQLVsc83SBnffTAM3vkxkPc7nwCp5q9yFDc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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