{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "578739617",
    "entityType": "User",
    "nonce": "0x4beb99714c671b66560e603e7cefecdf628fd6de20a6c391d17cbfefc3626df8",
    "signature": "0x187e7626c46d649cd9d1cb417fcb0b1f4443c9b4c4190f4c67e83d8ae95a4dff6a0fe829446face3699217d86068b321fc18ccfd5caffcc1a9f05185bc1b66ad1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}