{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0xb7549ddb416e649e9abf330a671cdb3d6686e07dccea98882d6c72008bb7b234",
    "signature": "0x2edaa078c30c526919c3c73898f58ccdbca682c9d9d707a1f55cbe7054b8510d22f372b8b239e7ca57d8df45dc5f479828481f6453e649f070eaccddb70742e81c",
    "signer": "0x96339e3C19861DFc37C9670Da1cF2d718efF3FF9",
    "userId": "126262"
  }
}