{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108446",
    "entityType": "User",
    "nonce": "0x1cdbc8cd0fac7c53c73ab67f9c8995a468ca2ff698338e72ca5a640b076ca283",
    "signature": "0xcfdb86fa2c2e5acecf7f72fb95254a275e01a9ddef67e890c259226df6506fe551cac4e742f5e5a4480c54e1ee986b1bddfe6467e306d7897d56438934afba1e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}