{
  "manageEntity": {
    "action": "Update",
    "entityId": "466597581",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa5a74d8b02ec45bcad2757e33a26058ae42a32aad4c343c36f3208844a81a984",
    "signature": "0x84ed0b5de338638efd4ad1f9e7d7ed8c1e10f1649bf87e1c0ea2ac24a17f561f16f60b3edcb19e87e50c671b380b5caad31b003adca252c38e7e8fe62131a6731c",
    "signer": "0x9B48044FBE000A8aE0be20753cF413B87aB1063F",
    "userId": "466597581"
  }
}