{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12562",
    "entityType": "User",
    "nonce": "0x7ff63ced0f8eb33f3a1a42cdfd28450f72cd0c83b7f3a9c577f6be6fe869ef0a",
    "signature": "0x5610024c75762c602d2e5bdc2f2b82d4b561cbf2740eda134bf94f19e01eecc9674b4256f24e020fd59f4fd243aad0abdd9ebef6d142b5bf3bcc901a5980e71d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}