{
  "manageEntity": {
    "action": "Update",
    "entityId": "715573876",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraugggxe3osdjhp25pcqute2bdx5wssuafun3ah7lnmq3ernvfpoyq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":629154592},{\"type\":\"playlist\",\"playlist_id\":375592719}]}}}",
    "nonce": "0xce28e1bf6a48c40fe2915d61f9210c9495d546cd04f04fcb68824ad941103d41",
    "signature": "0xba9d71b3dfaf5694af282107c8e8a6e74ebb7f4451515f4414e76c767e2594d83dac18c58883db45b4d0ed578425a8409ee0b54f2667dc467824f2d42b1d5aff1b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}