Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '41a868c851c557b871e6cf393a005a966a17c2095887f2a076dc531d1ec3cee6' 
  AND token = 'EfyShCe+Yy+d48PV0QH5TSyBycZGBTJS4OGpuX/CDRg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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