{
  "manageEntity": {
    "action": "Update",
    "entityId": "389274703",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3b3bc04d7a86dfdc0ed45885088278abe69fe2afe5994e69842cd3dd80eea45d",
    "signature": "0xc9e6d76a337206a8b15ec8e0bef70aea4821281d3b36199f80b1bf2ba3ca6f2301b874fd0a3d468460f612c3925e617e0ed28b75c69c8ffe86b5fab54369c5151c",
    "signer": "0x36897D126bC324C3c32Df0bf68030A63c20c911D",
    "userId": "389274703"
  }
}