{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "290909",
    "entityType": "User",
    "nonce": "0x39c0159f80966feafa3df7734a36734fff4f857aea35dea89e38b3f7ddef5dc7",
    "signature": "0xf8e4e1b14916643b8a86f2bfe14610c18ca6556e521e95a3e24c414c79d78131659efcfb57a2aba035f5ba24c8c55a8b66fddf4e869375029fab27f0b6105d5e1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}