{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51855",
    "entityType": "User",
    "nonce": "0xca576936bd317ba561a3e3a161d7a144932cf909128f166b35e65d4523f45b8e",
    "signature": "0xfbc9e78a2c6f2bd8a6cfb16aae8858674a4708bd37a1d7a9486cf3acc151effd116ad2fc135fda28ef158f3609aa44d8a5637ebf51a811d5ea3dbbc8a76fd8901c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}