{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5858",
    "entityType": "User",
    "nonce": "0xc7f3dbf550482a6dd1b887368bac30c53fbc0f5761f9d0a3390c9f3a9fc6b6bb",
    "signature": "0x6506f51710d34f91258438ddf6366d55e66ec198aa96c2230020a20a27093706205bac3862f3b46108b7be189438376bb1e7050be04a71f4b698fc06f00f3b221b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}