{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1340150",
    "entityType": "User",
    "nonce": "0xc6cf608f72fa394aad53b0b66d2d379fe3b1e1499f2ab5e66d952248b506155a",
    "signature": "0xf9efd254e1b8bc6c5f3ff372e7e453ef1a808268162b60fabdb9b577acfef8960ad696bbcf1dce8ec491fbe422ba218a1c05c409f5f59df033027b3d4ae381891b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}