{
  "manageEntity": {
    "action": "Update",
    "entityId": "302723743",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa5c76a7467f2bf02e8f4cad2918fc13bf3d8d54f9b7338a8b4f00c29f1bfdee3",
    "signature": "0x14717a52bc955781120045d34d93a7ec185143d2973b30c09fadee1c77ba0c12290692ca22cb108b6943c05af1ee8ad5e9d86feb9e163a739e46cf3ad38241f91b",
    "signer": "0x115E9ED4b6780eD9AA6C5c972Cd8C86BfBC2A6f9",
    "userId": "302723743"
  }
}