{
  "manageEntity": {
    "action": "Update",
    "entityId": "893245689",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4e5b9b59b96107ecb5df0f06b9f23dba90bbc34df522c987add3544ed2863489",
    "signature": "0x8b31671b553d31ad27d432b04b3a20ffa453c188744a418802947409d788df9f0b9e7f430cbdb74dc2845c3615f99629af6d99c2f9843d95de4a755adb159df11b",
    "signer": "0xA6471Ee9DFE4EC106125Db2A30B377A6598bBc28",
    "userId": "893245689"
  }
}