{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x9623fe9f3b52fcd2fce001fcdb4431b7908c7e6cacac34497813a6eea2867289",
    "signature": "0x79c66d7952d11eeaf98e66938652ba38b02effbb56cda74117917741ee9a78a06f67bc44d2c0dc0e17ab082edade4b9e17e9b145cd6bbcfacdb9ae70db17ddab1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}