{
  "manageEntity": {
    "action": "Update",
    "entityId": "591258369",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf0b4e66bed12e072b0e948c7213b9bc521327864ceee08c2d9d0320130bc8768",
    "signature": "0x3275a5cad94a20905a26c3dfb8d679e5a64ac71dfb549f422eb79d9ecc72747c78d481dede8e8d7b5a15fcc3b8569254cc785db5817794dff489b1b7f75fd1d11b",
    "signer": "0x27A2f02cB0876AB8c3F17D0b43DADbbb9ccBF747",
    "userId": "591258369"
  }
}