Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = 'e754f9f109c4458ffd4fb9862e3769e7ae6a7f0e2e0ff4219638f837e6cbbbec' 
  AND token = 'X/xfyfAmL65GXDprodX48Px8mnu8wQnJyRR4DhAzqGY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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