{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "770725415",
    "entityType": "User",
    "nonce": "0xc2ea3ccc1f9ffb48756fa6cbec1a690de0a4b9677148923a3c923852f743c20a",
    "signature": "0xb77e4c93758db02fa95eab7d6fed24403992cc4e4daec7deca0c5925f1cdebea70ce11bebb6179353abde2616eafdf9410d4f931d64e84cbeb4cd83b2d6e96db1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}