{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "597397433",
    "entityType": "User",
    "nonce": "0x4c1b07eab2229cfe4d579e5045e279e5f2b4158e00870df2cc477e29a3ca9f2b",
    "signature": "0x88e80307ce8accb0df8c06ab09d99e9a4780eee99361ee5b0f4f9ca0021777fc68550f6c9cf7897d54cafa6bd2a322eb4bdda409d8ecc8c78150d4a29bc052621b",
    "signer": "0x20c238b8C67292B74399B705c8Ba45682d3854D3",
    "userId": "751451"
  }
}