{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1674010",
    "entityType": "User",
    "nonce": "0xe732b43f719bd3c9dee11a649513de198b8775d96776839102950ca1cf84a43b",
    "signature": "0x241fcc2f9d08a6e990b0b2bffcf5856366b06aa7f8238e85c7e64faa0419763d2c67d3ce2cb03d51a61641209e5bdaa1c97e34e3391bb0ed3ceee2666991be941c",
    "signer": "0x60824E42B28a3C9D7A9eB6A6feFC1cfB7B41F7C2",
    "userId": "914462657"
  }
}