Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '707756af156fe2f6f6474b8ff6c4d70fb744ec14098d257c641568e5f4963705' 
  AND token = 'pq2kVquE2BUEIZAx/hcpqavr2DWOJ4EodmrDF1Y9+tY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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