{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "468923",
    "entityType": "User",
    "nonce": "0xd029da513112aff9bda9be156eae5f9c26ffad3ce694dbb4c4ed0e741bf28af7",
    "signature": "0xdff14aa1baa9009efbe3c6f80f9c49f473559dfcd28439c9b74b51ef1e47c46e57c8dec2419d124cbfd11b938c567fd5a539496245c746546d4f840bedad89b31b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}