{
  "manageEntity": {
    "action": "Update",
    "entityId": "689008688",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8b7c1b7443fdb6948a6292c4811929badcd8f26aea9e4aaab87f2ccea5249c2b",
    "signature": "0x2f520a3d738e66ae6335d27dc7e81cbb50373eabf5fedd4c20d09fc309f59e7112029a2600d6e966c8a40a97a020b223c162fa18297363d1a180a58caad485c91c",
    "signer": "0x95D5f6d03FD9e6Ae11F25Fe683EcA6fC4c0EF026",
    "userId": "689008688"
  }
}