{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398",
    "entityType": "User",
    "nonce": "0x70ae76e30432fa0ef9096f5649fe20c6f85a057a4197876be82440541d33764e",
    "signature": "0x45ba0ee0ee653927a1caeea9e7a793dd8b1e11aebe5de42079872699fe24208c36a4fd65ca4c206506db20dade8d0d5aa551529249663d2c5a44b01fb371609a1c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}