{
  "manageEntity": {
    "action": "Update",
    "entityId": "237765871",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x04762487d28b6c8d47f42af242139df81d85b9bdd1e585e8eb482f7967b57d32",
    "signature": "0xe94c6e8e20bf85092166bd816052e25883e7f14d6159467c73502834f512ecff2a27e02c93d3da0c5df5633a80f3d65549a652a2cd22c793caffc59b241ae6b61b",
    "signer": "0x8c716F932726b40bC9E1CEC18f2c93dc876da1Dc",
    "userId": "237765871"
  }
}