{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4257109b494d81bd0138898527be087b985a9304490c436f1c01b99cd4a12be1",
    "signature": "0x4fb1d53be9c720904014b034293130e021f419e15f19d3f4c89715c3bb80dbb83c0c11a374d5bdc89d445df7bcf796b86fdbfca58f64ab7aaab982e096cafa001c",
    "signer": "0xE5a8065127808Be1b4292C121D4A8b8348d92217",
    "userId": "31935113"
  }
}