{
  "manageEntity": {
    "action": "Update",
    "entityId": "801764342",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0957cfbe3aea18d748fbcfbdd6eddfeb0c64e562b7cbdf4d69a6598ac21e53a5",
    "signature": "0x4f06d8c398747353695412e0754eb054018d6ca3b3126e9ec7058e66ffba0d1e2618cf9a2beb52eaf23a11d04159e0242fc21c90e0cf9fbf9520e8bacc54665c1b",
    "signer": "0xe1AB4ecb0F95b5ea275f6E67861966712A9F065D",
    "userId": "801764342"
  }
}