{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296985",
    "entityType": "User",
    "nonce": "0x6f2e82a8685c296c21f4d484aa2ebc02b6a22e8e171d4837a8cb073dd28d0f6f",
    "signature": "0x3040665914b12288b87c193ca00a706e8872a3e9503a4378e97617055c7655fc09f64cccefdf864a5629f9783cfe6c7c14279674e559bf2b4f604077c0bd0eeb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}