Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '922259caeb50bb80c1ce7899ed6b137c60bab43947a9ee276e1b60d625780f65' 
  AND token = 'Qd1A3RL6uIFaIdev9qqGIbGR6j+jUQQ/BFxGdAv2Ung=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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