{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0x8f89c4c6c1bfb737c163eeea0c7e4d524cb8e5e0c4d37a46bbca826ec1f255e4",
    "signature": "0xfc2dc00256f58fb3995bdca3f28b29fac59ef64a44c9ba0104c8181f2c864b895ffb3060632bdf193c5358c97c693da6f8b4af8255324edf67023c7a83aa27ea1b",
    "signer": "0x28E33991512111134d5d0a41560151532083B312",
    "userId": "9962"
  }
}