{
  "manageEntity": {
    "action": "Update",
    "entityId": "723334741",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc0213d44f7af824e95f925d14c06c6dbc9ff87fc00c044546469edbf40c06310",
    "signature": "0xe195af643578f7a9159c1087c72d15c3067776a03c5dfc96430df039b1b29d1e62a1e45208230da26189c23b26ed09e6ce622e2afb382a28cc3306d9d839001b1b",
    "signer": "0xbE4c4c69bc87C149f670625F67a220aFD51B9B7f",
    "userId": "723334741"
  }
}