{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "960936323",
    "entityType": "User",
    "nonce": "0x1ef3c35f7c238d6b59641cf048b24cffeecd6e4599bf47b5f1a79b841f402cc2",
    "signature": "0x51174f0c0234fc4cd7d28c2ba42cf3a136de7053e09b8af9011f74c2910d2e5323a9a866ddebe7da109c67674bfc9a8a00acf070c9e60b9cbd38738729277f921c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}