{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6f139c3a7ee6f6e48f4e93919173c979a266578116cdb1c268c638ba618d38c4",
    "signature": "0xf71b70683b6806a81e8b75bc8e265f4c9d6a81c34c4b0df27a84d0684bfeecb72c8775a66788570508ec81aa526199d14e7f9ff15f61b16c7209f1656af29fb61c",
    "signer": "0x47b0F389919f57bCDBbfF82E7A9E7F9881A480C0",
    "userId": "888590668"
  }
}