{
  "manageEntity": {
    "action": "Update",
    "entityId": "700747494",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcb8754a6fa52017329c67ed102d59bdb0cf528763c4f2236ff216403cda7cc20",
    "signature": "0x3d7d06cb33725e8edf079c33406fe19e95da479d397bee6e6a42c0b540d50858775f904ee440d94d9347df5a64bcf2ad457c730291581ee9b12b77097add4a781b",
    "signer": "0xC8Da9e3a28e94B69fb2186A9FDe2B4ceb7D31e15",
    "userId": "700747494"
  }
}