{
  "manageEntity": {
    "action": "Update",
    "entityId": "549983695",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahnahpvazku3ku2vsjhry2fpiktszbnfsiehojjgnwp5uxh5tgzfa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1797343841}]}}}",
    "nonce": "0xd30b91d22ee7fc8a890eca77a6cf305070a5c2606790470ec86b760d0b5506b5",
    "signature": "0xf2a80053715175bb0c1b1a12c13212bbecbdd8d26aa13cfd0635fff49675a7516d9aecae1a5cdd4e77dc002285356eab6ef566c1db091b6ce428d24b97d858e51b",
    "signer": "0x5877F7e1aB261CEa57f1734519117Ed49d50c8c3",
    "userId": "549983695"
  }
}