{
  "manageEntity": {
    "action": "Update",
    "entityId": "356982132",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieracxdcivviucq6xf3w7srpk6nvwplkmp2tekv7yj6bfxxcpy3kvpba\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1028355788},{\"type\":\"playlist\",\"playlist_id\":116440029}]}}}",
    "nonce": "0xd56855f19c578c3740731b61c2845dd9a252e8f9b28c667bc633ec1504a5eb1a",
    "signature": "0xa63dcb06a496c6fe435be0211c14de0375f407cfb873fd608a3a66fc2b3bf89b4dbdc6cf91ed664a578e5809af22e36b31425e75cafe7b13e702b44dd2f2f6381c",
    "signer": "0x1cdFf70c3148938298C2f37555e69D65C18D364b",
    "userId": "356982132"
  }
}