{
  "manageEntity": {
    "action": "Update",
    "entityId": "775575884",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x24c60223b9e7f8089f336f3153fcd94ccc76f8d3caa6f63db1108572272c6f0b",
    "signature": "0x5dc53fd444ac2a165d007bd78ce15e7f640f26ed226621000cad58be989be0f43877aa9eef3cfca24de318f890c3c231b313ff07933cb35ae48b676d5c00627c1b",
    "signer": "0xba188b067cBfed364c4d7A1896F1b511a22e246f",
    "userId": "775575884"
  }
}