Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '158bfb71faa6e750541c468ef7ddded0490763766f5a8c80fb62f840a9ce0774' 
  AND token = 'o1tKDq1EVnKAOK2/LEC+VR1P5egJnd6AkdD5FX/4hO0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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