{
  "manageEntity": {
    "action": "Update",
    "entityId": "406881157",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6b40d14ac5c69dd53061de4c874bc295c1b069e1de62c41b65ecbccbee25d344",
    "signature": "0xd3ae4f9dbdafe007bf3fe66b8194132bc7a76c1acf14d0ae5dfac7e04b7b43f4338d7a8446bc6f5ee35f9ebba21a275e6051fbe8ef63f6dc72bf2bc3b462ea951c",
    "signer": "0xE67be183bBF2A23e544175b99f85FfCeA89a5164",
    "userId": "406881157"
  }
}