{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67699e769ebe9e0f7297803a361138aa410401bb2987e8d8c2d2f0d83f5568fe",
    "signature": "0xc524d714d8e63232045ff5ec11fa030eb0c1710430ce46124542925238ba58101cf2ef74d7fc1415536d635716f5c9204eba5e1ed3d364eb48181f467cbbf1581b",
    "signer": "0xc6b869735612Da4C8c3D09254847610e33E14eBA",
    "userId": "144123927"
  }
}