{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307",
    "entityType": "User",
    "nonce": "0x9f2b5f7486956d2a32b2e3bf4262ad779e79509aa00aaa1188d492cd16a0f533",
    "signature": "0xaa47a79ed3a5a891d9205e72fbc0a231d8f992f5d7e54d6403eb4f641e37fc474ea8a008a80cdbc2ffad24498454f1ee8df9c1822c9a56a022212f317b492c661b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}