{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5671734d806115240bb79633b2ad1d33ee58928db8aa08eb227c299433bac68b",
    "signature": "0x3bf0fa0425ed07b7c98f9525f978529c49f3cbd949cddb3c65e3128ae6b039653cf63a0c2058119f6f387f14c069581fdd193b3405656be465eb7cf610540f5f1b",
    "signer": "0xE106e25b555a71F42A1945DfCE3E623B305d5DAF",
    "userId": "792760220"
  }
}