{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0x7c9130e127e77976ba2f7079d41c4709ec5a3f5cf58c93e0bd38116b44556f48",
    "signature": "0x2e24c675391f147a1c18c528ea4c8c3e77eecdb4e15212aae268d7326ce40a3d377e909680a8c9c62939e73209bc40cdfda1960fd3496286d5c1965c6ff128ce1c",
    "signer": "0x2aF04528b05939B9f7F5D99Fd67081660907b6b6",
    "userId": "3541"
  }
}