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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ebaafe62e87e4e8566492d6c6cfc48d1247b0ff8368e1cb73aea3d224a49fbfc' 
  AND token = 'voRlSAICkRQZ5Cv3btYkcChNC2ThzBz13y/C/qmD96k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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