{
  "manageEntity": {
    "action": "Update",
    "entityId": "83657080",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0a37da1663b5d9e12f917ddc7e53415aeed4455fe59b79046829d1e936631f3f",
    "signature": "0x5acc649f19ddc3222471ee553ae5c666a3c04bf2cd2dfe8149835699b6f1dce109a673154cd1b8ecaf9a70a398165c44afeb2d1713aecb424962cc40850668451c",
    "signer": "0xFf72bd5bFc445d05eBCca0E92057f747b2059878",
    "userId": "83657080"
  }
}