Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7bff6666a648fd1bc700d165e2e35285044108be1c52b71609bf74e731d7e8ac' 
  AND token = 'GMkaRaJKawFoEWbkffiH1JaHwcjzgVbdcF7O49DMeoc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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