{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274010868",
    "entityType": "User",
    "nonce": "0x7d9091b59020a3b6e5cdf7d72331762b4256276cb3e5c9629c0d3cf8186c255d",
    "signature": "0x2075779cc57890a532750deadbbe1f9ec6aef078ae2fcb696c83021313998e6f6dcc4e2e7b5d065c3caf248d50c57ed431026cf1e6b1d85a290671f8ee40a4f41b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}