{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "285034",
    "entityType": "User",
    "nonce": "0x68288572079dfc6d40ced371fa2cc964abf2dc187586be2e5396a2290ab1256c",
    "signature": "0x2a18462597602eb01aac05cd7c2d25c40e7249c78d4572f86d0047ef98489bb15c3ee1f1564a81b550e687ebfa36001a55473e098d9a82b01a82e8179fd005751b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}