Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e2e2e5f799807cc4071ecf420300d5850a65204a4a27879d1328b9e91bf233a6' 
  AND token = '+rtS4tuld8x0YqDJTyXEN6Vusc3awQOHTXeQxriQrok=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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