Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '464fb9d135fce40b744a25e287962711adbce3ab13182e7abd31a5bf898fcff9' 
  AND token = 'nbnilJewzog1vMIgCuphy3TA1fvmGFSfQk763gE4gNE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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