{
  "manageEntity": {
    "action": "Update",
    "entityId": "413378711",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x20676f742cbb39b0ca223e2597476b4e146076c17154a9516494c06641791a8f",
    "signature": "0xbbd84354a32551f51d0a0c5a2591fe5ca75ab728ae459aa7090761f50a61e2c7568258db4bc27a240f7a4229d6358a9d2c9585e887413f6b7c47285728cc52c91c",
    "signer": "0x5C1f6fabc4752148231aC080F5Daa085c2Ba2Ab2",
    "userId": "413378711"
  }
}