{
  "manageEntity": {
    "action": "Update",
    "entityId": "186499665",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6a6af804939eea51c822d71d924ce3e996ebf265e101e4d512907c541e7d1499",
    "signature": "0x1cf23329366a24a737ba70344ef16c9b70d9ee77c0b3516fc9297cd6f056e56d417981d8d88abbf65eda8e6fc5953eb29124fd2cc9910cf2ff3cc01121841fb01b",
    "signer": "0x389B6b25D8bDEee42D514b8eF8Ab6270a0A6fd1e",
    "userId": "186499665"
  }
}