SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2fb47586989f13c281d47f7a87e722b74fb4914cfeb5c2cbe4a9c18ac633054c' 
  AND token = 'uZGR0xjmFhHwpSfGWMcOliakl4spCB1kdYWXa+yLPD0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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