{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0x83437cc0ae603e2bb170dbac2808ca88e1e531d3f39346966791f242034c6cc3",
    "signature": "0x4ce128b2f1911087e58eada4a83b6e2fe824fce1376ffbcdaf0b367b2749a4354d5b3f2755bc7c37d70079de30f3b0974f9955d22869a1fc41ec66c42b89e1361b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}