Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '401da36594c98a7e8659a89c55384cc6c895a89421b4b1bf3c6771e00625adb9' 
  AND token = '+AkWhzdLpq02LRPlQYz5LWy3eDq4ZK1JhbicbH+W1fA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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