{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237191",
    "entityType": "User",
    "nonce": "0x099c9eda3f442aca7f7e60970c2555a04e18f607d5fdb181052064f8b123c37f",
    "signature": "0x798779d64e3537b86c825f188542d6aae8169c7130b091533bf0c18193b74be35aa98dbfc606564aabcf147cf07a4d671a252b2d542d71b9d81159a6a426a9511c",
    "signer": "0x2d4E313C5C5BBeCd31f664627b0a91361e5D04D1",
    "userId": "106406"
  }
}