{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7b8b2e705c4f4c5cf61bb390155e9cb326360af27eb596ada09cf9a4dfde2f60",
    "signature": "0x363a9a536d4c74628bbdf5c8c8e323f1975ed115808594fc9510bb6b4b1bff1170dd2e0ec44481924921280b9d8a4257330428dea6f712879f5b61f9c0266b821b",
    "signer": "0xC0A0a2275bEFD96185C2fCB4671BDc3c0792f95d",
    "userId": "340698045"
  }
}