{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329869",
    "entityType": "User",
    "nonce": "0x12c82b9e0fbcd6f7744299a39a0e9d182c3f9d318257008d554be57d8c7e62f0",
    "signature": "0x74b0d3fe518965966fae381987cbb5e2ea204038dc80372e56027ac686759fa028dd99498951a8c28fe81911a155aad7975b6f7442af6ae1ff676112588e51d81b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}