{
  "manageEntity": {
    "action": "Update",
    "entityId": "582384432",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb8fe49fe7358e50d0db932af03dee3ffa1803ace56eb95bc5ecf5e9cfde7580",
    "signature": "0x5403426adf5457cb0657d4473f51d47424511e86f12338f881f753c679d888fd530def9d04507c0f50cbe11912f334c50d600e2955969ce2ac1634cbbdafb41a1c",
    "signer": "0xe65BC280728eCfe487A6CD19623CffB0358CD861",
    "userId": "582384432"
  }
}