{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x3b78e8c75ab97159660e5c223bfd9d0f5c1055f690e5e251889776814f537500",
    "signature": "0x80c8cc8ffd34a8045b1cb061463cc09601832b9c0b63a815e0138485af2d5348035a4166875ad688907f36942ae002d4379f96301446a58e63862851a62813781c",
    "signer": "0x560CF638EEa19774538D453cC9eC0745a7C66556",
    "userId": "242603075"
  }
}