{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0xc89ecbe7220421f46cbb81e9b68f336683f6da584bb19089142abdd8e93c4783",
    "signature": "0xe7300c85d6e4895cbae1e833997148c72e4e6bb3dad6dacdecc41bfb7d8093f301e04d543f072aa3aa8e0294f07dc20dc6394f942830de5a5dbb0d49960498551c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}