{
  "manageEntity": {
    "action": "Update",
    "entityId": "891644412",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb276a23ce155794bbb5663dad471d32d81f480db4210f4b75be158571b072b11",
    "signature": "0xb9282ccd3fa2b1ba857e573fa369dedae4787e232517077900cdf75e3c5fe8be2a75bd14349e765b8baabf71d71246137e9ca6aa87f237fc0604d62967fd88831c",
    "signer": "0x29635bCB8417874abc2517d1eCb61f78dE63e3Ec",
    "userId": "891644412"
  }
}