{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319458",
    "entityType": "User",
    "nonce": "0xbe64a470f58c387e8f3cd803c84566777fe39418325b1b034cc2aa531707cd6c",
    "signature": "0xcca5f3084f238db9ec446a0bf1db09eaecc19ed6dd8bfa5d294983e8a882114d7767cf9a3b984bbe5cb14432869407907093cf2ea689293d32406dc5da7d7d521b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}