{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1731",
    "entityType": "User",
    "nonce": "0x226193bbe061bfeab62ce6b3cf5aa0e5492c08ddde00244d361e85ea6d297bf6",
    "signature": "0x651e7d1b57d6797b11549b9e32262cf0a7579808ea19c14bf10f952d3431749e196a13c6b1094427c22509c838ab5a43161a217c271cbe807720c2233220d0921c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}