Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'be0a669bd77fec429f28188bb3d80eb644ffc359a04b6002a6af1f188915b6e4' 
  AND token = 'yLcRBzS46GIbK1gJ74pINE7x2pxUtz80dHIRh1Jdeew=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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