{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446918697",
    "entityType": "User",
    "nonce": "0x3f20e1b441cd476fb454b70e0bd881fa864a21ce81e96bc32f03771130158e32",
    "signature": "0x53c2dcd0c20832242bd70db4bf0586e67b3aea4cea0ae6de556689de4546bc4b74813131f2f2afd4808e9e546a2b51b1928c5ec35e8849a155bb2ff296131bf61c",
    "signer": "0xADBccb01955da7C5EA1aDf029271207EAD637c83",
    "userId": "657708299"
  }
}