{
  "manageEntity": {
    "action": "Update",
    "entityId": "740756901",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfbf06c4c6905c3a41feecc51e58910e64582bdc4e09f44a6ee387556e67d5802",
    "signature": "0x670de62df348c257ec1519ef3446d218dc9626fe725463ab8accc5e87bbf95543395f49a73c58443d0bbbe78e47ecce6f696510b4e4edf76c3dd137e0fe31a691b",
    "signer": "0x0B7CdD3c765101cf8e4ebc0A820095DdF6d79896",
    "userId": "740756901"
  }
}