{
  "manageEntity": {
    "action": "Update",
    "entityId": "812178189",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xad82f412410c0744068a8bf3ed108603941d85cc6c9b05cc9da8957f470c3e7a",
    "signature": "0xe4d5ee640dee88208c85fe7b12a63dd111da803b30e09b5608d9541b23a5cc9d6ff49ef27a1e823d09e8c219066ac38fda82d7d2fcd274f749bec24df57565e01b",
    "signer": "0x9ae23AcE6b02fCA07a8016f642A82bEb698C77E8",
    "userId": "812178189"
  }
}