{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2595",
    "entityType": "User",
    "nonce": "0xa566ce3f40c2371527d64c650bb97c04e74089ae759a137701f3f1ef7d0e5451",
    "signature": "0xf60723584ba1a2ba5e06ec571f0f0cf4f5c3b93b2247dacc71ce9fd7e1bac1a96066597ffd1abc616d0df5e289fdf6f196652c68a978c25fc41467e54c70d92f1b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}