{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115899",
    "entityType": "User",
    "nonce": "0x883be3fab1b5d60ab8146a2a806bb17eec57581c12918902be397350906228ca",
    "signature": "0x630544b8f41d01fcfa6b921c5b3ea20c1d6feb281e07563ac37e8e3f9f26fc1d31f3e39221b78c13500789d047f7778b05ca4ab61d7dfda6e3f44fb1edc1a1361c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}