Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6a17c4db838c49a1d29a9bfb99376a0075f79a5bb332afb4e6c82ba2c2444e3f' 
  AND token = 'hAnnE4Tj3l5kbRVCwkED6ISftlRCG2AV4Xu8ZuRaEhI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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