{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2bbf8b907f7195b87fb51308b050da39cd9ef06ee3be53370a789292bad407a2",
    "signature": "0x1c0bd627509552459738493752b004a6ce56dc416dfd524ad204786fd3afaf61150b958643f260222845afb4794bce3df7fe86a43ab198d35646f4d4345607bb1c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}