{
  "manageEntity": {
    "action": "Update",
    "entityId": "969514133",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe26ecb3e9990bb67972c66fc5ce32e746a4cdc6b9e4d3f99dae9216c133a711e",
    "signature": "0x9271e1b070704088d4383641d7aadddb9909b8e659014423aa8c9234260bbd0653200f0729c08b5d3ca51e233237a093e0efc47c0f9de32e8f4abd1801f7fda11c",
    "signer": "0xfd06f079425033753440B59A373A5D932A13dd63",
    "userId": "969514133"
  }
}