{
  "manageEntity": {
    "action": "Update",
    "entityId": "834540087",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9f98ce69c47de36a0b2cf615a3e068fbbaa2bf21774001e761d3bd85d11b9730",
    "signature": "0xb9e242338d76e9a01f8189c9ef960411600995a08efadffd1659545c43202e41258220d8dc73a1cbe6e20d74ba6649fe8d96cd338d2f5f7666891b8b07250f851c",
    "signer": "0xF0CaA5581Af6ee80150b5aA4643d1069EC176dB6",
    "userId": "834540087"
  }
}