{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd8fed3be125fa6e646cfc0de27bc510642c2a65bec8439cd9e78e9029640a007",
    "signature": "0x2df33b51727ec9d2c807bb7ebe45972eac09fa15b7adee38567f24510c0e891074786ad4d659b9eede96f5d845e3f3be9248cc86a8bf787be6431d9555b728d31c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}