{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0xa553ecd6016cfa51671df3516be052663d27d6aa035cbe30a21be877018b8cec",
    "signature": "0x2ecc55c1bb4fe4bc037f161b75711ed1a927f7f33ebabcde29a302ef54bdfeff0489777f36e6dea54592d148435db3688d54afd455cadf8afbf63493485558df1b",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}