{
  "manageEntity": {
    "action": "Save",
    "entityId": "156501567",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9d43f85cada0962ed2417f8294d61558e9228b3a0c3b2e3e627afe8b11953fd4",
    "signature": "0xce849008074e8e00da2bbb2e1dbeab44e4d97728cea80001fc8c39e243c54c916a4181fba20c53f8d6ebb76f41c420beac15ff56a2a65b6e8033f2cfa24ff9751b",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}