{
  "manageEntity": {
    "action": "Update",
    "entityId": "158433016",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9b086b997fa4ab7c2989b615c7fa375eee1d256d215475f72fedbe63436caf5f",
    "signature": "0x4aece885e64ec26a92abc43432b094a4ef863b30e9fa8f7d37f2eab8ee5e67380bb54ea45b3c3d6d5c03e0b7b4ac687f1143bc8f583928e2ffa7f7b33cbecbf01c",
    "signer": "0xf0eb585b6d27A5d2d9fac81774d96649D1AEDf6f",
    "userId": "158433016"
  }
}