{
  "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": "0x376623a178ac516d1272e56119c3244078eccb91a363e1a63a31a97befd8d715",
    "signature": "0xc5e65b6113af77277a7830bf3a6163b294a2541060dea4743e8996b98a7d368f0f99da2a7c5abd91ccb0ec60f90a400b1ecdc266822e75f9f75362936478fa6c1b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}