{
  "manageEntity": {
    "action": "Update",
    "entityId": "310186398",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x84354a6fb2582199a5d1faf5c6ed71eacdb46929f2a1310b5d3b96b0a7ce5b0b",
    "signature": "0x5f9733c229b5c87d1a1635afcb8e752f1140e34e3209852c50fbeb75ed385c070d0b46370ad95a5a28480cafc54ad9ca6a4e6d3010839ef0e9f1f9a9b08e7deb1b",
    "signer": "0x1f14fF6c245081DAEBc25bA0c5c8f4A0C40fbAb8",
    "userId": "310186398"
  }
}