{
  "manageEntity": {
    "action": "Update",
    "entityId": "615749984",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0bf4ca9e1764c05405ccc26bdc0f1f8a7071b7e05610160e7262780cd78a0816",
    "signature": "0x56a5586e9c53f785cc99bc02f4d7e08ad2786f704d96475379874a1fb272de7570b7e9c26251292c6121a0793aeac55eec2963866b01d15c209f6615618d84b41b",
    "signer": "0x11c0E39fFA8FB4E16Aa11f58978eAD6b105E9f66",
    "userId": "615749984"
  }
}