{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77155",
    "entityType": "User",
    "nonce": "0x7d77e21adf5a9eaee2fe76a12aabdca838d9f562a830f385e2d0f3a121787ea1",
    "signature": "0x35747bf436bf824280e66cee5a998cb7bdf2249cd461238d8d0c50e806e5f6505e09c51342e0d21d7ab21a14b0f7673ba988be7337481f8fa4db182ff6dd99a31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}