{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x8b49a089345541f1e0b50a1a8630f25db2e75beebf72058a0258112e92955321",
    "signature": "0x9f2b12311ab44081ce528c04c761fc77a9ca5aadeafac2575d0e5689655c0a116add09b94fa5447d006c6e431ec2ae6cf3b14a0564ffb3bcb97d31ea80f9942a1b",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}