Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'da2d3f323d3a25ad510f6bcd66a66507ef6c2e29b40ed1117c814277117f2d72' 
  AND token = 'M0kuLU9EE064/x7S3VV1oBVcxq44GZV7PTdxR/szOdM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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