Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64c74a572af052f2f5959fd872ca61f2da473f71771295ad454fbd55f2140c0a' 
  AND token = 'iZmcr5XroZtB5TNez6eSpUxHBOiQdkKNx3ToLpwlvtk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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