{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172938",
    "entityType": "User",
    "nonce": "0x2562fcce0df1f372d7aeb31f034d17fb48bc038697fc7c925815f82bb585935a",
    "signature": "0xd37e4dae7abffb59967dd4273356b5b32bfa54b7e1a6e4dfcfd289debb474bab51f9eb56ecf360b73f61d8d84e81730e654447edd7a38d3f535683c03cf008371b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}