{
  "manageEntity": {
    "action": "Update",
    "entityId": "45443814",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbb602470bce0f91efe7bf6c9c29caf02601d281f29acd2342eaab02d92d7cfb4",
    "signature": "0xb8b6dd2742d4c84daacb0954ec485112c943da4bf4d6c99f7b50a9c5423462fa5cbdd31065a6ca71b2b0420d2a8dd5408b8e4daf0d437eb6b6634bcc8e2e3db81c",
    "signer": "0xF552De26E4C120C00F9BCFE3c7aA56067cbD6c6f",
    "userId": "45443814"
  }
}