{
  "manageEntity": {
    "action": "Update",
    "entityId": "302766860",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2d9d50c047708603daef840fab4fd314c4e1e5136ca9e1085ae75573a4dad972",
    "signature": "0x834570c3a86d7985b9856a2c96021b2920a2cabe42937730ae86957e577c35757a9dafbf860fa00efaed70853ad1695538c6ea6cb2bf1aedb54606cd85c748e31b",
    "signer": "0x2a6bc249A75e034D82D1862b9C974a4BfE99f419",
    "userId": "302766860"
  }
}