{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbb285e447d69a27b157a78d1a2d5d833f8239def07fda46a1d8441d49cdabe99",
    "signature": "0x32370dd14733ef6bed3f9c21e34386eb609afe3accf45ec04e8fbd07603f931d322067b9254485d19ee0467208ebfa92d7ec4ee40a9e0e092c520f8999200ea41b",
    "signer": "0xE084438778162ce5dd4e90f643b9F375cf6D0D53",
    "userId": "844726408"
  }
}