{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2020883",
    "entityType": "User",
    "nonce": "0x82892c8e7cc12fd89645f60fe9f31fa6dd34854576d3235a87d6ae98df9e41f9",
    "signature": "0xb2910c1a581d5a780866974e601847348532972b76b7fa63dd3826cb95aae05c2046310a6f5e29410f3d3e449ef26b16c0d289a58278b8e5af62f45e7442b03a1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}