{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12565",
    "entityType": "User",
    "nonce": "0x452ff9bedd13b73ccd7e63484da8b73c215b6cb1d5a8de409d2308358699dd30",
    "signature": "0x3be102382cb1e7fba0e2e072efea12383912653f282a8672f6b20ac362f0af9102f27bfdf3664d4603683d754f204b295954f40cd6bb412149f5347931f6f4231c",
    "signer": "0x6965Aa9ec89F0ab44c5241159D2188d7b83c1D25",
    "userId": "278763919"
  }
}