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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd1438835fe3f8d3af6d52ad07a7c8ef2368e9d512ae03e74e210a177e0a13688' 
  AND token = 'aI5GWtjwptQllJLOGuss7N2yoYrW2yNurUvFyd60uwc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00100

JSON explain

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