{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200980",
    "entityType": "User",
    "nonce": "0x51ad7761eb91404cb4b78228b52432d1930ef00e06ea23bef5694edf619e59cf",
    "signature": "0xfe3a24fe74061e4b1eb857980ebc4b99289d7db8700386dbbfa7fd44aadad97f2d7a8ac1f3254ca0021746d283978e4d99901a9fc49b4dafbc785ddf038882bd1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}