{
  "manageEntity": {
    "action": "Update",
    "entityId": "328056745",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf9400244f32f9a124aa5d64fbdf037fb52c38cee8b8f0fc8149a0b61f635c882",
    "signature": "0x7ebf5648e617704311381e1a4ba3159545e7de48f37d6d3644b461e34ca206e91aaab1915d2f19d8ad058bf89db347b13b6f1e00e05a7d73de9efba1256f5c281b",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}