{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372037",
    "entityType": "User",
    "nonce": "0x8bdd559e057e4ed77ca12778c5c9af21dc0d84dfd447fa92e1dd2a15c906747d",
    "signature": "0x9ecb3c60ffac1b87700f44f171167f695633532f558a9cd13c75fd3704bbde537b7a33de7a8acda9bf32172c80222a2c2bb5a36c08cb958cf91fc4a796509ad71b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}