Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1f9c12d5adfc8de8f78eef309eec6d737d66f7163634f48625df2d69d22e74af' 
  AND token = 'RSeb6GCG2c8cXQgYgUQtI4yfrFSs9S7+ZMlQef4SNzY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

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