{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313481",
    "entityType": "User",
    "nonce": "0x75e5e89f246a1889341a34657e87df6aa6fac87f173d9aac4ef66611525dd459",
    "signature": "0x9ddb95c8ed4e9b14567325023ca25de350a167a67b1eae28edb6f4bf163997133503e55dba0ebe562df22bc80f4da14610ef448bf11b7ed1956dec703fca8c911c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}