{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125119",
    "entityType": "User",
    "nonce": "0x2fa11f8d48741b601de7dcc52a8037b3efc15eeeb7fb41d0d4c3ee3fdc9fb23f",
    "signature": "0xbafd56c8847742ec6027a3e3992ec11a4677110471fca09e3efc09ef4b07e2c94e867bdc427ea02961a2468daf9d4eefbf8f2f63db8d329011fc68b21b061a8f1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}