{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5328",
    "entityType": "User",
    "nonce": "0xc8f013cf80e519558261bd0ff3b86730e9e97e344e49a6ba56dd2f534c112d59",
    "signature": "0x626b8974d131fdc2a709f82fe89e2163ca0b34eb8d7a5e6fd1c37f684d124c0801e702878da162df85e4cab33f68df869f0fffaa0f0ecfaf43ba2ea85c68f30e1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}