{
  "manageEntity": {
    "action": "Update",
    "entityId": "260812273",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd7c92934df28b754868a6c6a59209d4b68b35f5e742fcfdca6259ed872a82cf2",
    "signature": "0xeeeb51ad18b153d254f8f291ece9a3d68836e39c162102c26424c90936c35e907cdab4b7ab25018e7e824848320c909b23ff32cc0d3d57db973d3f7eb931a3061c",
    "signer": "0x65676c38011995D367e3179F2579c421a0a09A4D",
    "userId": "260812273"
  }
}