{
  "manageEntity": {
    "action": "Update",
    "entityId": "907403350",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazh7pp2c5cz24lzzugpupbcdsv2qj3wcfbnhm7n2m234s3xl3cxdq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2138568950},{\"type\":\"playlist\",\"playlist_id\":903220488}]}}}",
    "nonce": "0x9bd956d845e8a65b60cf8f77fd524ebb082d73e4621e40833d43817bafb9fa62",
    "signature": "0x9c1e7321941e31fb7a2aca438ce9513046bd408e4e0eb70ca4dd1be613f915ff5ee23e10dce893b5780e65c03666a4efa18f63c7503bdd2be054dc2d15af13b11c",
    "signer": "0x86eAf47d5f971A41E77E8E60f25E321E25451104",
    "userId": "907403350"
  }
}