{
  "manageEntity": {
    "action": "Update",
    "entityId": "457584438",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7b0f791834da20bce0818a897467fbdf7d605edfa9facbbf0b7506ca456b0134",
    "signature": "0xb8331d603fe2f15ed72bdbb273cb83fc4396012d202f216a2e5b10d2aab65d7f4a4c8eee142a8f72dc58347056f029805d19ef6e973685f7959d4e14dbb2cbd41c",
    "signer": "0xbA3b8b40E01e91bCCC95B282Ac3C7296EBFdf5FC",
    "userId": "457584438"
  }
}