{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "788254743",
    "entityType": "User",
    "nonce": "0x59023bf53ea7b722f80e454edbef5a8b7f89654db77f30c2afad804a1d1b0603",
    "signature": "0xc68e08b4704da048b53c4b9186181ca8e74b3c58901b38a4b787b96ed4d8e7ce1857d0f9bb326aafa34589fa5b7f7bb20b5568b225c81c00affaad4ecede8de01c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}