{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "482935408",
    "entityType": "User",
    "nonce": "0x5768c53687c83ee9cd837231ae6145cecde5228f08bad877d19eaeb182daf0a1",
    "signature": "0xf2d43881f5c72666a818ec3c5acb776068e84a202eb1e287746e641be74ece381bf383c1a03b2b3347f6b8596ef3f2716b0b17386547ef2b2ad945e765f4d9b81b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}