{
  "manageEntity": {
    "action": "Update",
    "entityId": "823048563",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd140f65c125d3e44a8cf8e536501399083efa0839ce84b22efc363e33bbfae4f",
    "signature": "0xfdbf2aa7c80cc714e3d6da0fd4f9be64e760437e3dbdf821527bb869ef1a24f2590fc5264f349784524d7d4264f28d044b26ed1d8f80d1ce43557348c17281b71c",
    "signer": "0x582810fDE34ef7183A2AbDc4824EA3415C9f171a",
    "userId": "823048563"
  }
}