{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "412109420",
    "entityType": "User",
    "nonce": "0x3f4167d37f513d207a93c100360616834a4cbbebd54e6649afacadaf2cd24039",
    "signature": "0xd745ec8491e8580f7152738629f58c97b2e9a5af3e88147a2cc1c2dccffbe66a09baecb956085749cb2dd02876f2925b2f5b3f2d3226caa4c94a639da4e83b8e1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}