{
  "manageEntity": {
    "action": "Update",
    "entityId": "115071875",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xec72e5499987ff2f6303a50b331a887362d5c91bdc343d1b2c5e8476a46befa0",
    "signature": "0xfd704d9558919c54feb7b3c7b651e64bb45155d1b56952e2bd0b77ea6a7239e30ef683de01331ab76fae51324ffd0c89205f3e42eacde8ebb2c0831dd84e9bc91b",
    "signer": "0x9C3949285a8c365DB3090B2635C2e746c704AAaa",
    "userId": "115071875"
  }
}