{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a3dc7b87b1b3cac0638fc2c10d0e7b9395527bbe0cf43c6b94b643b836396bd",
    "signature": "0x777bde59a514b627fa0655935ad28362904fa7efb3da82d86c2a9b7ea61ecd1d1c67fa9b516152bcc6f0f68ac5133ffb938c30cd28007a4af0f5b48dec2103f31b",
    "signer": "0x1aA9cc552a00C91582594402085D7d3442Ea9DD9",
    "userId": "41889862"
  }
}