Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7f781dfd76d9aa0ed1adb55fe3b5ce53dddb568b830be9daca2d87a250c50af4' 
  AND token = 'SuWlEivAnFFUjNst4yXCU4BBv7tImEFPgpb6Q0ezpIA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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