{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x184181059832e4aa5595a585c0c4aae4f72c2712e069ef460e38737c8a006b91",
    "signature": "0x9c1bd105f0a15b2944b6551a2e98501278ff8740b10d7af408fd1087c28cba0c5fa9d1f32fe7719676572c50799afb960dd561d2454fc23a1662007e7e7452431b",
    "signer": "0xe08C71DA3e0c879D36bb941Ad5D914d0a004Fd1A",
    "userId": "506796662"
  }
}