{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "720251199",
    "entityType": "User",
    "nonce": "0x19481df9d37d4c65ee051a2bf41154f510f9d832e70abce04c4d66fc88f28fe3",
    "signature": "0x9e04561bfbc67959327f2bd39c183b103cf4293e2d78dfc22620427d6d2430030362f986c34bb16a1068939932a02a1019ea55af4ca5a8adb86f460f6875c57c1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}