{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3efb4a05d040e4da6b651524214bde71bf37995c1941e3b5c16f45078c855048",
    "signature": "0xef65435fdffb7c29f7c9a447667816c6715f0213d7aaa4712aff3f5f5697ca7643706ae1436ae6283561f877c9e71efeb56a838928e77d91d44a32e2bf86fcb91b",
    "signer": "0xA5248dF7173702f87d7c8CE8441E2b7C35B04E2C",
    "userId": "931160236"
  }
}