{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xd5d9f8c1db31d94bccac306c36ad3a217fb4889091207afa7c87e17b22199619",
    "signature": "0xe1744a15737de180f4264349ba8d5a55a4f1fb29655137c6d3665d29f693b9f909ff3b43e70b6d00eac11272e6c0df8eff795c0fd8f8f43bf10c2ad89213fa4d1b",
    "signer": "0x4ab505DBD73CB27C1457E037607E5fB3B27915f9",
    "userId": "186630"
  }
}