{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0xf8ed0c2bf50b9ac3dfeacedab6542d6c57fd809a8f8781f3156d0a604b8ca96e",
    "signature": "0x1ad735e6d3abacb00981457866966616b58315a0658586e9e6aa2c8b4fa69c0b49e4992dc26285fa8eabccd719ff6fb46c184667a3b61cf38ad81ac0fb9d592f1b",
    "signer": "0x8739aB96B52ccc56d0E5226Ff69659162d4269A9",
    "userId": "320952162"
  }
}