{
  "manageEntity": {
    "action": "Update",
    "entityId": "745626046",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x84741b3de359b3dd76d511df7ff540394ecd03496447cc550a039d44eb8f08bd",
    "signature": "0xfbcc7c39745ffe61f43c1db07708ceaaacc8781bd260cfbb98cf250d6a7db50c465f472edc51704eb2a1aeb43b72e3c555c03fb17ffe1e328f6a8d2bcd15d6fd1c",
    "signer": "0xb1f4515fd4eB62a3D12139eE45A31240E087d8ee",
    "userId": "745626046"
  }
}