{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5ed383d48b8c2dc5a8ce1b33684064185a6466a91bb354e96b25b007d2dbcd02",
    "signature": "0xfab33bce77321826f979e6b1eee9198802cad9912f8789dcf56be2267c6f14177303c55942e070229081b8851dc46105ace3679f50338a6c580b5f2c83756cd31c",
    "signer": "0x0381Ca46367DAC381887197413DAbeE96f21ccf6",
    "userId": "664008331"
  }
}