{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1334982",
    "entityType": "User",
    "nonce": "0x71a5a75bceb866cb3d5cf41f9a2a7dcd0e9b005a9cbda21cf41acf1e5be68ad8",
    "signature": "0x54dd65beb49de8affde510b7f446f621a3cd677947537ce2255d72dbe46837b956c018d0c8ad9b6d070200b39f660d6de18dbf9baf5cc2c5e4d4c5fc4c3ff07c1b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}