{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "529342",
    "entityType": "User",
    "nonce": "0xf6afaf23994ea7109507f77304e0a5d89501892e3c0f8bddc008a49393cd3eb3",
    "signature": "0x27bda0881603074611f3e92290d7d2d63c390fc0242fbc3b8f63b1249d3838061019d4e80a3ee357f253b1f22749596030982ca6052ed39c1b093c5a720fc36d1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}