{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77732",
    "entityType": "User",
    "nonce": "0x53e91a63603393c7495c7409acb7bcfc946a389fbc9201a876c742bce7b86e7d",
    "signature": "0x7325a8391e0a799946f38ccf74d3a7a30d7c3e3570c2762b9e265369a22e82626de1fcb3f3c69fc8ac4f4468a1fd29771a7d03f546c228aacfc266369f59cc0f1c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}