{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702247",
    "entityType": "User",
    "nonce": "0x5fa72a735488d1683f4aca4fb3c8ca12adbde1168bce4ecf147939737f37929e",
    "signature": "0x0a408dce342c2c7986b68610aa1fe2510653a04be1b9bfcb8499ce97e4e1924a43e737ab24f05840341dc15669edcb91a0e7e5b92cf4d757b26c38dd81b7b2ee1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}