{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "758745",
    "entityType": "User",
    "nonce": "0xf97d9408f00f5628a83a8c1537cd285cabcc15d8ecb03e0a1efef9ff02395881",
    "signature": "0x1ac4ebf88bdbf17c4b1d0f4161e2f72f689a039363a78bbc8ff4faccd1dce627173bd95db1f0db863b52562bf949ae5b6fb6e649d3718a85a8d06508afcb03621b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}