{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328601945",
    "entityType": "User",
    "nonce": "0xb8ab3d805ab020b8f10ccec3983c14479da4b325ed92b87479700021cd638109",
    "signature": "0x20d6043ba575b1f2ba2aecf641771880bbc7ba8e81d845bf2c681dc0be735883767181668d4f52512b1e1d356ef11aa17a162694935554eac1c91ccc52c50f0d1b",
    "signer": "0xC7B16Eee24C03712c67aa884907593f4df23db87",
    "userId": "56534466"
  }
}