{
  "manageEntity": {
    "action": "Update",
    "entityId": "308261833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawqsqvlbas6gacjzlyi5opzjmc3xsxklqmfgspqeiriiqjomjt2xa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":616769041}]}}}",
    "nonce": "0xce0e91fa19282cb0fc8874d4035284047bfff42519a7bdfc2ae1706a9ffd80c9",
    "signature": "0x95bf13332592089492440d6610cb600ab928915fc8a39709bb9fd82ad86aa507016d6f755f84592f0aecd0344df8fa52ca772ae70db7e5230c96bb829a78865b1c",
    "signer": "0x4B0a22A25ed0c580309e8a5565722854C6b7873A",
    "userId": "308261833"
  }
}