Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '554c61590c0011e3a153e30989782e52b007f32287b63a58252563755019b9fc' 
  AND token = 'owB3Te/CcoGQv3YYQ5Ih4z6gSLplybVxTeOeFidjbSw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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