{
  "manageEntity": {
    "action": "Update",
    "entityId": "177113250",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x030b3a52a77b59a862f8670ed6722c415e83613aa67a1ca362db059ea83eb6db",
    "signature": "0x131df478ccbbeddc6ce712c6559ab78ac175fe573738e8009189602850be3a3605898ce0774c8283ec61069bd8899115492d80a884b84df008f88ffc42b8aa221b",
    "signer": "0x7B8c93608c2a10ffa54F76CDc983b1DC5Bbd0b05",
    "userId": "177113250"
  }
}