Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '3f0762407b2467e045b07b9738ea0d07da83a1df342ec808b2d5c701f2b0f366' 
  AND token = 'hpQqkgoqHcoerCD0IAyf9ikBMyBn2gA8iCM4g5V8eTY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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