{
  "manageEntity": {
    "action": "Update",
    "entityId": "186410956",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x55a2b360f9b892c21754ea8366109b560a82cda7459f0f1eeedd3e7c4cbf73e1",
    "signature": "0x073e5e9033d6504d3ea0d45ab4cfe9e4327da6aa11de44726a000d745477467765716d6d0f8ec23f0bfa9a25313171331a7c3aea1ebb858b3e05d5d6d6c60ddc1b",
    "signer": "0xe0A0e4008315896ddA67116A8b3aa6A1E1F17CC4",
    "userId": "186410956"
  }
}