{
  "manageEntity": {
    "action": "Update",
    "entityId": "583778049",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa59482b37f8e5bf1e007c66a391136fc7543c9a6a94a2645b8de733c2e40390e",
    "signature": "0xf9ed9795f5a11d20184ce932d6d13cce833ec87d933d5163cafc1977a712bb09103e27fb9604e1a8378a85a17c9ee5e907e46724bf5d4708ce252d65bf45e7f11c",
    "signer": "0x328792F50caF0183cfCb5089c9f8dE46a41989Ea",
    "userId": "583778049"
  }
}