{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0x794be046cbd7c40b8dc936426bbc2670a7dc21d6b0055cbaf4ed8113c28e32d6",
    "signature": "0x11307e2f7893196d14930040e605cb86d83262d8c0aac700d266883d0331d3fe6ea6276cb7c10141f3d33388ff2fa37c9dcb0fbc0e3812628c6b0e673a92dca51c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}