{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979578206",
    "entityType": "User",
    "nonce": "0x69513b188d4d8ce6b2f266e63a4d0ae5b502bfa6df19f6c0fddc39378bb25228",
    "signature": "0x24b05e46138a75c25336a57aa1105a49776c33badb448b1ac26d089863f498a77a57e2839ae26eb696728b81e3fe593c3dbb6965d73f1641a52986db404c87c81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}