{
  "manageEntity": {
    "action": "Update",
    "entityId": "680518195",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x655e9861adb56800bec34eb782d558ef4ccef21ad5e643f3a936aa64d93ce9cb",
    "signature": "0xf0b64867aa6bda5ed07bd6dd7017b569423805371dca6f495ae3c3d62534f4b55c1d5d2705dd814c4a4b06b3ac9ffe15d00149bd0318362fc9c06e15496747a81c",
    "signer": "0x9D3C8F5D16bd0737A82959859f0cd860Fc911A27",
    "userId": "680518195"
  }
}