Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06548ca2d41a417fc03cbbc9e5c64dfa1a83936db89d7719355ade6ee58f24ad' 
  AND token = 'CTIJtnC1h54FLMFU1bxgyMrQj5O3KhVo1ipyv65ILnQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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