{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8d4ea64a8957969d4bc0ccd25c09a4d67ff303f3b911fdfe5a21c69210371365",
    "signature": "0x2f193af463ade3ebc85ffdcbeb0143b48f67f6adf8207f839d3b94154b62926b6094597dc755fab453056f1116f90efcee25af43c920f08f4dc92547768f95dc1b",
    "signer": "0x0c3c7204062958afAcBc12B1E07fF62f7006A000",
    "userId": "274785296"
  }
}