{
  "manageEntity": {
    "action": "Update",
    "entityId": "495160577",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd2ec5a64e38f74bcc097338b5e9aba094e1b769be12d37ac387c4d62e17cb3a6",
    "signature": "0xe20e52ac46c34fb402e0b672f77cc86f78ff8ab84477eafc19e1ce7ddd65cd6925e97001dc8ddb3890197271ee41d9e701391b184fb3c14a505a1619abec0abd1b",
    "signer": "0x959FD51Ead810737Cacc5f4E62CedE5307F9BF61",
    "userId": "495160577"
  }
}