{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6fc47a3502608722912ae8a1ab3b443c6c255dc2a9f6bf90607657d869a4c504",
    "signature": "0x16851a3a453ffe41d45a68f5be9c95053548018d36e12e93969365ffe70bd39d3dad6b04668954af03abc91a691335cb49dc1a9d780bd438d92b26ae014b68ac1c",
    "signer": "0xb40a27Bf4C7b083385476dA3CC180F9c5BB65aE7",
    "userId": "920761053"
  }
}