{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "917339310",
    "entityType": "User",
    "nonce": "0x53efaf375d46594bb18fcc2c0eca4ff84bbb7f55ee3e9c79fbb043347ea7a9af",
    "signature": "0xdc60aea27813ede2fb380571c061cdf373186c1652c4b41b2d241f2b1442e4060de7ea8b1a4c81b8c201b0f45a7afb506da2bddadb573e450dc86dca0bb335e61c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}