Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '43616870bbd913a29953785cbca1bbaa3cdf241f3c7e340bc2e16995fcb74040' 
  AND token = 'Pf2mHH0a4U8jDrVnK8tNDzz81QhAm2lxXTUVSfXoshI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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