{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x66f2ed5ef1f3f178c5355b0517ef46415d6c43e01de73ad13783493badf7a2be",
    "signature": "0x9dbcd4be9301ed788caf5d2a3da8e594e666658f75e8f8469f588ecfb42486181e9e4d557d05bd34c031ffa5dd62e5530d8784e5d8dd888e085cde6911027d851c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}