Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '92008fc219a0b96beae4ef6846b4f3e2c1f1ead34cfa42cf97b5703ef6263b5e' 
  AND token = 'WzfYlP10OiUGGzNtITI1M2TWD5F6ezKfSS6aIrGJFsU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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