{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275210993",
    "entityType": "User",
    "nonce": "0x273dd34310b6e23c22d8a7cfff788e91b515729b2eb32957507ae3be1f668b3c",
    "signature": "0x64455776c249d2ee03653bbd5d0c83ea8d59cd7d016d046195a7ceb3151065682ed6510d1bb93533ad9310f28054e7e04adf3546228475008e9c4d6f7f79b47f1c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}