{
  "manageEntity": {
    "action": "Update",
    "entityId": "156660389",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierax4vanydi2uqzys3pu5rgzctj6zugi76erpoa73bo6ijn7uq5zita\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":220536330},{\"type\":\"playlist\",\"playlist_id\":66399984}]}}}",
    "nonce": "0x7a4c10156e2b9ccfa319477fbd28a1af4fc8f7c712c1c95993ba695ed33c3dcf",
    "signature": "0x50018f807360ad22d15e7fa12722db45826a771c6a04c0adb1ab0a37885120091f8a41e612119b3589d3f8e3acc352506f50f49182c5e228dbfdacd98be45dd81b",
    "signer": "0xA057bBa0eb386F1B2D4740a96749971CDF62f66B",
    "userId": "156660389"
  }
}