{
  "manageEntity": {
    "action": "Update",
    "entityId": "426986612",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x299eac048ade98a9e200a6726fa59e4d0949feefe4651a579d0b020b2ba9f879",
    "signature": "0x5b78af320c6647cad32658ad2431b452d310b9610dc124626f990f1319d82f590f50ffdf5df457e653e9ea08b4cd980a7bfd4b51e1ba06d39b11208241260b221c",
    "signer": "0x3c3cf888a82Cd7dC4d4C2a922a11941DD6650657",
    "userId": "426986612"
  }
}