{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "682798637",
    "entityType": "User",
    "nonce": "0x0f4290d2cb599ec136d9d9284ae11af36a8327332c2dd71664204633b7d6e2e3",
    "signature": "0x52477a7a55df33c41e487ba9262ffe75bdd85296c3c1568aabac03c23c082d022d65d6add014fdd0e3a020c2838182a794ebf22854b0e9e16829a0e37484268b1b",
    "signer": "0xf03E2eb658f4057Ea4255CF34BcE6009938B86f6",
    "userId": "904522318"
  }
}