{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x07fa017019affccbea50b4133fcc9874710f401a8287d8ed852f2d0093a1f85c",
    "signature": "0x52bbbf7e2ec6d2a1f71a36fe4e54623777fed3ef44a08dbf22a5e5c7b7c265172e1b7e1a14a821a21a27ded8dfa2b5865d418869376af3b6166b341ba73da9561c",
    "signer": "0xF2477E26f2a043c92796200Febb882B3A4012046",
    "userId": "772666149"
  }
}