Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a1281e5ae810fc39ac35c8c0632173141776506e9e9d4f5b46c8ebb2dd012b83' 
  AND token = 'TV/StLuLLQgpylZL2S6ORNQxsVS30Jz3b0xrDctNexY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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