{
  "manageEntity": {
    "action": "Update",
    "entityId": "895414211",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9c98c1439f64a26f0b055136f47c18131cea9b80ce1be6b38943e9f569192330",
    "signature": "0x48794fee9aae8643451f7674637b5f8b08f3e2391566aac5c2246bc2cf99460a289ed78f006208af324bd82973544b4a5e76d1ac4131c3b71df53d06bac3400e1b",
    "signer": "0xE38b2EE55025fE4a187bd709bCA4f4a4AB94521D",
    "userId": "895414211"
  }
}