{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345852",
    "entityType": "User",
    "nonce": "0x4131dc552116552559e62862ca1a92d478191901b4c1b07f094e6debe3e81bbe",
    "signature": "0x5b4f289690d8ce173ffbc7e2e07f61a6fe0be0712cdb453fc7fe787479cd2ec13b4776ab41bb29c9da77cb7dbbcd9815f2028a6cd1d852c0617e8fb099cded191b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}