{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "681230276",
    "entityType": "User",
    "nonce": "0x58c39fdc0f32f17297cb5b80ee61d27db1527f664c4ede867bf05197459a4382",
    "signature": "0xb464f905099f3d568a34abf20ca259341a09ba9c68d7e4597a3ff3ecdff507c85e3eeefadd4d0a4e865df3600ec925249e434f9c980e03ff1dbbcdefa2cc1f1d1b",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}