{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf35bad59d7fa14222f60b6c8ae460f8420c8061389f744f220ffe5faccf3925b",
    "signature": "0x6bdeeccb5b589643ed24dd34f5ecc62973c5b7d60b9ffdfa74c5ec2e40f387fd2b192dd4a54026a6b069162b158fed505a5d04d82dde28dc3f6cade5d850c3061b",
    "signer": "0x68A3190796D0F706481cf47d3f837709637ef0fA",
    "userId": "966009905"
  }
}