Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9184ee530f68ca2d60e2a15d85d0d0e81e16221698631cd089952d3314b80b60' 
  AND token = 'pnQLfHEIkcPkBSLmWo7BvLqf1soFMsvvlBPnR/HbiZg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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