{
  "manageEntity": {
    "action": "Update",
    "entityId": "909822926",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahtzjcxzjdcyclaec5t4ande3fryqifz5nk3foweyefqkvtuhtixa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1126518777},{\"type\":\"playlist\",\"playlist_id\":118958}]}}}",
    "nonce": "0x72748cbc965f710fc35f3063890e5dc35586f70263835ac3de71b57cd2929f0a",
    "signature": "0x140263dea0b51673d56804bb04f19928a869faa56aa5b3a79d6ee02e67815182303431c8a09d76fd30a17ae718b0f1b7f14d1d79e3e15d155a6c2241bc73c1b31c",
    "signer": "0x7315e02d352D97bee742C3B3D87F3277D05bA410",
    "userId": "909822926"
  }
}