{
  "manageEntity": {
    "action": "Update",
    "entityId": "65772740",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa77d66a6dc7384babe36cc5b6fbd11b066942f6b53ebffe1d244b00e6e2eeb23",
    "signature": "0x97d741bb0e995354415b86bf59fc08058f4acc213d4b7135401096ba4b7a4a84312d4cd31e4741e368fe31e83a399a7a463c8323b5a8460f9c8b72b2d13235431b",
    "signer": "0x365FAD1CA3cF42D9642476189FCB92d609910F2b",
    "userId": "65772740"
  }
}