{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "705628816",
    "entityType": "User",
    "nonce": "0x6ca6a448ec3e8225893bf085fe1e67164bb28398724528d55dc6d39feeeb722d",
    "signature": "0x9f3ca06e780203171c63c7c6bc69e7a927a67d309b13864c62d45a4927412f89204dbcdc655d7763caff53b3e9afdef0e60ed36bebf84884dde0487fd5854e7b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}