Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2a3e565ffac737967690c82e2a2179164e180a85db1cfb602f968778ae317a5c' 
  AND token = '1ocEM9aLHuyb13zfwl/KwMIc/We3TIjQv+AKf6tMAEo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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