{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584616263",
    "entityType": "User",
    "nonce": "0x5581cc8684aabba7f14547d707d7b81ff5cdc8b3a4b4df4ca3c47f147e1d2792",
    "signature": "0x020ffb4a0736b19ade00c572975b479f24a0f8f7cb77fa33e536de53a37929fe7686412ce4430044ca9b9aa9a6e0f3afd2e01b46b3a2b6c7314b5c88e3473d8d1b",
    "signer": "0xb68FB6A5ae9015De46D9634e946c04517523Fa43",
    "userId": "134619804"
  }
}