{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7aabb6be7e7833fe5bc126ef66cab1ea9f082404cc60657dc0d4b98d28428eb7",
    "signature": "0x7cc27ba2f5913ad4d23f42a9f023d4f1f8de3ee3442b78fa60cd84f0c6e0f4d244d6b2a30a3678a170de1fe28c573006a98207003f64251d285d2e5b5e36a38c1b",
    "signer": "0x63aa846197bf6d5e49790af17177cdBf8D6bdFFc",
    "userId": "318105270"
  }
}