{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508263176",
    "entityType": "User",
    "nonce": "0x97930e6e795692d971cb0dc854eac62557cd4069a88186dce32468dd5f61d466",
    "signature": "0xdf594f4ce5da6f2dd1460b162f58b27ea2509356438acfd087049301cd1df73f57fc68586028105e3cdaca7ab9747979ef1f3f6fcfb3f4240d26e0d8eb2713f21b",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}