{
  "manageEntity": {
    "action": "Update",
    "entityId": "260772518",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb18a83005805c7836e73ebf527e4b1e512c46081ef4420caacea9f78dc3d5fcb",
    "signature": "0x544b316ba7ed3ddf4bfeec6449f87fabfd0099b89819b8728b2c2d0ad5c5d9046665e79bf8c16ff970164f302011927a91ffbfdb28dfc3d888c2be917ce7003d1b",
    "signer": "0xC285baD86b80c235C03d1Bc0C2a1f1aa1302A1F6",
    "userId": "260772518"
  }
}