{
  "manageEntity": {
    "action": "Update",
    "entityId": "610405205",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbe85f4f62da2b5c81965c0163695122c53e4dfce1cd07f9d4a7bdf8d4e56ebca",
    "signature": "0x37d307676f7bc8ca7dd72f5c9db5409bdae278ffa5d2827276fd6e65ff7bdb5e131c23ff44ef191847feb4ec605f332a63f177ec887bfbac3fb4339e1f1bdb611c",
    "signer": "0xbf6f38aD4be458F2B943d1d1D4Af66223769d6FC",
    "userId": "610405205"
  }
}