{
  "manageEntity": {
    "action": "Update",
    "entityId": "472318548",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xec5e609df2a1a9efdf43cf6c20dcb9f944b0d315b25d68629a99c2fd2f60e5d8",
    "signature": "0xbc5035767d954a80d891013f8c8617c83ed71dac7da01cfb7cfff51261affdbb214e289e9458364345121ebb69768a6f7a8bb592e88fcff2fbca187cca4f3c011c",
    "signer": "0x8a0fBB1D56011bE4785f7EcD3050eA4fAA83601A",
    "userId": "472318548"
  }
}