Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c50c9f3de882faabaad6da24368be50ac84dab951836fc59330b0867b5982fff' 
  AND token = 'VEETArqlPX5fyIHammwqyGJsxYKctY7LxjhfPOfL3Qo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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