{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111374",
    "entityType": "User",
    "nonce": "0x3b8a567f6ab2a02141f7051f654e7e5ff6e02e90c5f8eb5ab64cf8b1e6688d51",
    "signature": "0x30b98b192509b17d5e68fd74e43e1a1aac408ff1105a9bebb45b5d8a80f44cec106ff94779ed483d38818ee4cf16936d0d66f15cdb50129615856dbccefba3f71b",
    "signer": "0xAaC345b281936C4DbF475199566cD620F4e69920",
    "userId": "64989989"
  }
}