SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '17073c62f8e737815ce9ad095ab129f650e270796f10c337bac9c893cd681eaa' 
  AND token = 'H9XmBIjBIR2nugeFZVCUZ37punifJ1h93aMmDiPv/zQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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