{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18054",
    "entityType": "User",
    "nonce": "0xfd6d792bb6b5a03682fdd1725333aaa39aa999aff7127459ac82fec06bebc39b",
    "signature": "0x9b64127d6930dca29448f9d838a1cc104485758cf6d2a228ed6e5d6532b0dd345c5d0dc3b19c009f508b7b99d237fc8c17d590ab1e117088cfd65a64bdfc98ce1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}