{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x764e75314f98aa22fb2e0559739862b8ee664159d0b38f23de080329a6435320",
    "signature": "0x035e47e2ad3997edc9c9b1b46ca2b8532233e48cccee7f56dde32c26d544b6133e55fdb93d53e0d6982b05162b26412e8435985161bd762330927ea616abaa4a1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}