{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314708",
    "entityType": "User",
    "nonce": "0xa70c651e898aa72f53d2bc82e0c28a25ba5189c3f63a4f5c7940af2d7d3d7fbb",
    "signature": "0xf67cb058531f5818383f961d6b7ea794ffb85c151c6cb4a49797ec2f71f1e5902d841b4d384b8a9919eb70a244defa6f5937fdf84eb861fe41605ff2ecd3c1bb1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}