{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357450",
    "entityType": "User",
    "nonce": "0x05557c084bd98dbde9810f843627addc5b2780a1efcf3c480ab23c297db20fe0",
    "signature": "0xde0ba0cc8de8ad17a02a4fadca5f8fe69c521fce1da6148ab41351b0f77b7c6161f09b3b4d0b25dc55eea3b8a3c0987f9e4f67d22d1ed238caa1ab74d6a916821b",
    "signer": "0x5823e56644991c5f5f29870830175996Edb011c0",
    "userId": "433764837"
  }
}