Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8b2657348d9ea28e08d4b5470a1d665fd6a9bf3e0dc117468301ee3bff2a2bbd' 
  AND token = 'L5M6mvBIgCgNW9x66Eg4SRxhgLShax0p4bSKt3hFook=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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