{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0x681d7013c563e34936bc57a38bec08069f9b6588baaf2372250953d798a51359",
    "signature": "0xfb1245af9a92af0ddc11737be6746b2f3df5eb113c7b0ea6646d26af2ca875cc313b3a09a953705fa96e88624cadc1903c22b6a4f8b53b371cddc94bd15ed0481b",
    "signer": "0xE534A1ad2e8E1f616866185D1efDf463B0eD38b4",
    "userId": "353625"
  }
}