Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '75efeb070d82542aea9611410459af2c4adb90e58b7c1eb9199f6df834ea0534' 
  AND token = 'gZri2J5FYQfDelof/rRDMdV6KQmuVC5Q5M4uh7sL50U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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