{
  "manageEntity": {
    "action": "Update",
    "entityId": "847061609",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa776f215359eeb62c550c1cfb5414f14fe491ef997dc794e2776c09493e1140e",
    "signature": "0xfefb98855d7cc75c2fa4fe566dd996b0a9807a78d3fab6c55f406ffa2b2276e33aaacafa1c2df7b6d5a2c2e68c57f1a3a32084df6abac5a1195b6c2d0b3eab1e1b",
    "signer": "0xA34B3bD78D03f9068F43c5eB822004a3b9846962",
    "userId": "847061609"
  }
}