{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994858715",
    "entityType": "User",
    "nonce": "0x2e898b400c8db5c2aa77de7958341347663f7e15ac06dbdd7cfc3e829f8aa7df",
    "signature": "0xce4b770a806e818e1179655f33946a16c04ffe4115d922e6d70fbde4bc5b2da179451d3163dc0ba6808c63713320403efdabbd02f104ef8a3325a4e2d24f7d261c",
    "signer": "0x3765700151BA1793CFdF9F4ef4c8fECA3Ea076DA",
    "userId": "957835565"
  }
}