{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1364531",
    "entityType": "User",
    "nonce": "0x416a2f6252ce439f17f65125fac85dd5ede5a6ed7a3413ab36c8e9cc7134d195",
    "signature": "0x04219a64adde7ac45eae20d855114438467ca12a8205cf5a150595a78eba29a635ee71f2403ee1d14c6f534221fa8963669360530094b7a4e764dc794a04961b1c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}