{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71220",
    "entityType": "User",
    "nonce": "0x10607d93955d5533d75f92b7cc2dbbb15d442bfb99c413dc494c5650d1e9d45e",
    "signature": "0x9e4231351bc6aaa2272d3890005b3495e0cce69cb0cf73dfee23b24b629695cb1d13bcee7b14ffe7549b3add53ee4278c8a5ad7ee5576486414b834f7e465a4e1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}