{
  "manageEntity": {
    "action": "Update",
    "entityId": "29501285",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb64764c239aa62e47b8bc0f15d1fe61fa69fa79ad7270119f530eab0c196602b",
    "signature": "0x4ea70f905d6a33768d761ffa46fea5afb8de0aea4b2ae03c5074564637c6507035099014b97e5fe3f099f0f8505c40a6291663c0460fb46f30297b09d0cd3a6e1c",
    "signer": "0x2B9187335cbBf7d443c5Ce6329964821Ea87af55",
    "userId": "29501285"
  }
}