{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395683",
    "entityType": "User",
    "nonce": "0x91ec678543162f4349cda5896d2cee811d4964a16e59a0798d83a296a84caa91",
    "signature": "0x5fc7dc9c35a19300cf37521eb3e714cbeac921e69dfff7a5c76f69e7889a773336664ef68a91aec92e07db19c6e9ccd7978778eb1051061cf3e582703cd820351c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}