Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22b856dc801dc81803d1fab110f4319b66a3d7933d2b708cf6b492dadb5535c2' 
  AND token = '2H4Io3MvUop4VhbjegCyyhNbcEoYn/gDWAFHUippqDo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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