{
  "manageEntity": {
    "action": "Update",
    "entityId": "657228643",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb3fe9ed0405e1ab9ad72c94ec7d7bd2e5ed4f5a696ed27458577b39e5923451",
    "signature": "0xfd7ca7176360fb830c0160468a91c3d93e312aa454a1a7e41e63dba92db1b7a247f663c160e834c64e4fb2e7602cd0eaabee6ab926e00f5cc57975f1067be0811c",
    "signer": "0x00C2A14a2dc35492B2768b362eBc676E4B6E4979",
    "userId": "657228643"
  }
}