{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28961",
    "entityType": "User",
    "nonce": "0x77ce88dcb9b1fc319d07cbddd3caea9f05f3f2f485b31e41c588c246c62b54ba",
    "signature": "0x6caa1ee782916b9434f00ba7cf9a7ca0d72dc736a0a5988346a110a466ca0a3271893b87281cc26ad0f883c26f0f433e69696ea29c9c51775f91a65ce1e7fb151c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}