{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x66edcab62428799807831a7246f943259914bc35eb5e4c628e691f04e2fde2d5",
    "signature": "0x1ec53eb63bca6e0d247e6e5f9ae1f1a89cb9052f823794a04ae44b2f2b5bfa097e272d666c13180e26ba713a2dcbba2e7c2ce86fd5691ec8690bfb48ba2f74d21c",
    "signer": "0xf0F491bE628c3A5BF3904d1Ae68bc59234407951",
    "userId": "560417026"
  }
}