{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xa0595cfede98a99ca51fd57dd5ed9537dadb895d00bbc856793b78aa9c563da9",
    "signature": "0xf7f6ab906e289f12f69ea8de8601a7bde31c27cc233410b512d03210bd54fa592a9e632c28b055eff198001f763d339bc3829dcb28e2fe3e12f1d3e3d60c77361b",
    "signer": "0x0598FC797642238bFb08593189CB8B4b21aFF411",
    "userId": "179352401"
  }
}