{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x7e903874766674009df9ee215bb3389dac550b2249fb57d5fff9e4f1cc2d1ca4",
    "signature": "0xf18b84d8086d8056be21e4ac28910015067de2c7d6589c911e185330a2ddcc2f1025a4191b71d4143516fe3cd3270daa0b04426a9baf8933849901844ecc95cb1c",
    "signer": "0xA656a2329Dc742F06e5FA85bc5c9dEC6677D646B",
    "userId": "504172897"
  }
}