Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '466c653f193688f5234788f5027c5ad3c0b283dbaff07c7702037ef650d48ac5' 
  AND token = 'Caxnb0TD9L6RE0fzRPeCpRerC0xo/cG7AYWlyUzeIGY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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