{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x96b8ada627d27a239ec03d3314d186f00d998b4c2bfd375732c8147d261b982d",
    "signature": "0x1ec8d932081a2256ae88ab605d09a75337ada70e6437eb2202e649ea7c7b53c55616ce85b033e39cc5c9e2c505d1a8d434c386dead7d36f42f0a59162063fa3e1b",
    "signer": "0xC3e337F140B5763dDffec24D1A410A04080A57Ff",
    "userId": "201554951"
  }
}