{
  "manageEntity": {
    "action": "Update",
    "entityId": "457719352",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraled27madevlshtcqhsshlaabqu74a75cob2acah7szuniblp65ha\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1371825632},{\"type\":\"playlist\",\"playlist_id\":1067571049}]}}}",
    "nonce": "0x3ce0536686203d93a8535d33157169e5b7e93519bfcbc21200ea75be424e4c32",
    "signature": "0x7d639001fdbbb055587039c7ddddd5a05c05958185642538bbfa046e506c6e6214ef7ddc809a2a728812e08c408737d58069d6ff6fc4e10bc96a0511d398aa531c",
    "signer": "0xeaaDaeA3d82533Ad0D1BF4B88fd03EdE01320868",
    "userId": "457719352"
  }
}