{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "483580821",
    "entityType": "User",
    "nonce": "0x7a6312c3e64081d0d499e9eab1457214ea2b01765c62a365f71efa18882058b3",
    "signature": "0xf452465f57fe5d1305ba8ad6840add28600f3c89353a3bdce3ceb88b31c1566b67270233dfbddbf0fbed91643620ee9489fe7cf6f16784f248ae15613f5ad9681b",
    "signer": "0x85f9d440b61768a3EcC7D5bD2307a38caf322BED",
    "userId": "242102384"
  }
}