{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77401",
    "entityType": "User",
    "nonce": "0x7a245941756379d176021ea9a998358c9bd854b94808e3fd49a9abb6128eb380",
    "signature": "0x81e915d8935d0c14afb0a7fc16b08fb7a83f695b4095e8108a6fd9c5892d1376729665837723e063cea45f739c7e54b18ef0f29791068f708aaabaf0a5a1a25c1b",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}