{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf4b1d38d66e7c72e7464d70f7b929e32c854244952af76dfa73236c6036ea8a1",
    "signature": "0xc24f548d656a6f6ea1d7b1b32a17db955cadae1262ecc38ad861a952888ff4000d61e0060a934487ba272951ba88ca6b81631b895aff4862da9836265746fbfe1b",
    "signer": "0x98a678b2b225c6ba4b429365951929F94ba0361a",
    "userId": "79105784"
  }
}