{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa3befbdec20828d1f92e0115cc53b7d7147302272664a7b2d37f0f9518919f25",
    "signature": "0xc21cde6350b1d57f89b246342e5a6ac5f99c227808b2c21eaa3272cba0d0bb3e3ece3f354bf20667f07fc923b49431d16a14c33900814d537184df1e6605db871c",
    "signer": "0x2b4664d9E28380466C2B17959303f1C6E188Ab86",
    "userId": "800744597"
  }
}