Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8bfcbece659fae3308c1cfe951bdb29799fa8badfd63925953780dfba04f79bb' 
  AND token = '2RNulc4W5fBGgJRg0sO3w6pZoZpc8TZbic4Iv1V4Awo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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