{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979647385",
    "entityType": "User",
    "nonce": "0x34420219793cbd709f7d9b034e2637094f8b17c5accd64dde1657c43377fa700",
    "signature": "0x9a02ea5ae7fb54c635ca8fb65da5e760a01edd4c088c6a8c46f2e56ab9befdca490fa40deb737b04b08d0b598da8b125548d26009298142dc2cdb698120fc0bc1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}