{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x78e17761d97410db1fd02bbf271cd7c883fd11a108fa5938a19d3e1324aa4b27",
    "signature": "0x6e84a097db9c61d9e4e6f18fc3cd5362f5b2834e6fcbac2b0780cd02ba3ba80878b83df677f58f868cc12639d90c2fb53ffdcd7d3cd6310e6f26ddcbd63df3a71c",
    "signer": "0xAfFf173081Abad6F049C29F679143C0282F7c3DB",
    "userId": "691095857"
  }
}