{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10075",
    "entityType": "User",
    "nonce": "0x2fcc41c41e154331a7da77b4955445e5937cd101b25e81ea1335d51742ab9d88",
    "signature": "0x5482570e65d510ec06897502140d29c5e8ad1326368437d65b7351d2e63d07fa48a39981e68b23ca0c91394bf50d3c46bca46bf82def0b4a522c7d185f0b0dd31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}