{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1363743",
    "entityType": "User",
    "nonce": "0x12ee0de85dc71599b33ae1db9ab92fde5c496b6de354373b380feb8982147a61",
    "signature": "0xc7f1c823a89f66d1187d25527ac0cb5de12e8e08a5d158aa273f14361d6a1ade16de33ae63109ea090703ce33b90e5143534cf1047514ebcd7b0cee6470d71251b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}