{
  "manageEntity": {
    "action": "Update",
    "entityId": "954867141",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6312185c0b0daf27193d03561ccf9109a7ac9e5a6566c2c8d355772497a407ae",
    "signature": "0x5a69ae101cc313ea3609b77ba3cc64ace437008ed59de017d87ffb7c296fe5402dc5e7fef2f40b22aa6155a7b3b7a5a36f0cf853ddf8d3aec53d19416d6622541c",
    "signer": "0x2e0458A7035eD9b30a48A89a12D21DfFCeb43d23",
    "userId": "954867141"
  }
}