{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1866428",
    "entityType": "User",
    "nonce": "0xad4c32714f9777bcd753fb2b94147989afe8575f2fb5da255a0b62c037fecd13",
    "signature": "0x91acd737b6763e583b65f8b468ad25b4f5ee5190eae1d8b424d5838877597f476f429cfdc6c7508657191a04588cd1d68eb6fa2a7ee02a649e518bbbb15cc2781b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}