{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108860",
    "entityType": "User",
    "nonce": "0x389eadf0b32680f6227239b58af2dfd892dd5a9bcd83730677a2da53d5044756",
    "signature": "0x2c20c3342773811d820e3397a21d430bbeb0bb3ca948de65300e4a8080b71cb45357ad0bd160e448527e68f75fc50378a1eb5439c71ace2ed9eee253088482921b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}