{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3ea65c71f867ed64c9f65d95da6f777583fde28e872ac0a25dd7a62a4d13c56b",
    "signature": "0x3604f475151a362343bfe501ee4287878cff4552e5ff4fd3cb35af17d242aecd41ef9f80504b80ff17ba213021393a55cb480582245cbeea8cab178f4a42e5521c",
    "signer": "0x225Df3D15B9ED98463EAfcb0DeF97035E6cafD92",
    "userId": "149779923"
  }
}