{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0x4658d27873db242c5e42b468dd852777f1f7ed71a3e501c8d17b4ab4457379cb",
    "signature": "0xd81be999dfc28f22389ffeec5814d8ff4ce49db5dfde121073fb6d749df7fcc87d09c9a50810fd1c1fba0cb62827affcca662e66aff92a4165ce068c1573a3eb1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}