{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2445711387ecfd4729182d668371cd2f418704689a76cf9704bda9ec2fc0206c",
    "signature": "0x26649955908356fbfeffdbf86d0d6ce88e25c46ae61c9617341ff652618140157ab29ccabde48f68552ed9404fc6729edf854dbf9069d363cbc413e2d6d0ae551b",
    "signer": "0x16d3EfE8AF349aBc9a3CeBDd1C9E93557f40Ed05",
    "userId": "824673445"
  }
}