{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396350",
    "entityType": "User",
    "nonce": "0x2222ab20b12c08730dd21dfff72806c37edce0db7f38d200fa49069858792fc0",
    "signature": "0x78816cbd662b4a6241d4de746b5c458be6288bf6e286d2a238f2317022beeabc0de442f264a7ac2213778f982528a4df527c1cfe4e049f9089af7644207f22fb1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}