{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136187",
    "entityType": "User",
    "nonce": "0x16cdfcf1c0facf4f3ae2a5da57abac5c5f73bb3b6ac74b6eefef99ce72808327",
    "signature": "0x68e874b4da2cbcd99a6f8cc0a35a3771eb6c922c4f9d3b937e82f1e836e4681813331d41124059542450d4cc7658c284dfed04ce0175bba9bbc948ab28ee3a211c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}