{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210783",
    "entityType": "User",
    "nonce": "0x7ba3c0236881b7bc2fc9daaa4ac3b198cd73d54c3f49e4239f7f5e785d4f35b2",
    "signature": "0x53ec699de31693029b7aab14b7a5afc60f1b34f3ef53260d8be0b75cece4e1632deb4b9c53feec53a91c81b32207640b82a96fe2ed6f6b635da2ad9b8dad0b4f1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}