{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12462",
    "entityType": "User",
    "nonce": "0xa88f2430ae622dc4068ca07b32319b4aa4c21a9f5d02ebac445078e1aadb5ec4",
    "signature": "0x3684f08229b05ef01dfd977a5b0687abfe68ebc539fd2cbc524d7f97658a4ad407a567a566bfbb0ccdf75441cb5fb9e0e8819113a2579b8745df16ba5f5af2141c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}