{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x9b8afbc34f858dc88559065c3c4268fa18b6ec2ddbcc27a2ac657349424704c5",
    "signature": "0x1c8661e72c1bfcb94cdf321e68563e3444f0f3521ac3e69b46029722aa90f5e4474cabad9a01643c58de71e64c7af08a93f15b6cbac23291900446abaae3d76b1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}