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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '463c0f1d95665ca83c539b3df7eff9814ba2948f557ca01e957a2d84089c4036' 
  AND token = 'm4Yp/ftMVH+DQqTAe/uXufbmq8ifEl1MXDoagVAvE4g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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