{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x8ded123fda928e9c7a3acfe09f61c596cf046dd9382624d9b7cef1ba604895e0",
    "signature": "0xd8b67f97f70121f9dc6ad80a50dfcfcf6ca2165370869ef4709410b9054d4bcb60a37bc6fe9d15884aba2ab1f83f73667e6ca3834032040536b7d5ca93b44c431c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}