{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x65ef43600a9bc9c281b4cfa60e6decfac8bc93d1f1ef0ece3fb5ad2a0bfd2ac8",
    "signature": "0x9329871bd9dee27e1e89b2696c282f760edaa856fec36a07e74adc7c507126482105eaec1c3821803e81d02bb3d586a5b61ec56a6584df2dce723cc546a41b091b",
    "signer": "0x5183F6e0300007e994a67bba9e2875303ac6dfad",
    "userId": "172638853"
  }
}