{
  "manageEntity": {
    "action": "Update",
    "entityId": "276584815",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2bc948ab2373e7c5b66fa1073ea1977a9f891ebe6f4a6003793733003e76a569",
    "signature": "0xb326fdc6d48f314f4a46e8d69ffcf1c7bcd7f570c5233fe20b4660a99932c3ae6bd0196482d39258617bdaaf8e48b792ccf471b5e14b1ee1ff34c0644dc3d4d01c",
    "signer": "0x8B4234597381a86d88d9B7dd566254338c6a31D0",
    "userId": "276584815"
  }
}