{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341",
    "entityType": "User",
    "nonce": "0x7e343af4c6377f612363eba6988c9a0361b6ec095a88de042f2fccae36af78e2",
    "signature": "0xfbacbb34fec764378b1e548d1661af223422cbf0eb2e990223a5d9ce09fb7c5f7d34440916c8bcfcb4c7d60e0342637d3ed9c961e02ed3446d64b10a06f620d91b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}