{
  "manageEntity": {
    "action": "Update",
    "entityId": "271365270",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0737b7e5335b2fe99e876edb625eafbb3de5fb44efb16216fd91370da288feaf",
    "signature": "0x4faa3a3c31d1b46eaf15d6feff2699e0fa9ff163492331d363f5ad3c32ac643d7a9f935e6dfa507caf026e50fba1b950327297a813498f9f68f25ea8c5c5f9d31b",
    "signer": "0xC0fD21113d138662362D8fDbc78dAf2a4bD23f70",
    "userId": "271365270"
  }
}