{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "758745",
    "entityType": "User",
    "nonce": "0xf2a4df9f45ef2b9d08d6404a4023858daa4d25808b5c8acf9b8b534a91b51395",
    "signature": "0x2e7e2d5230af706457aecfa3dac84274569d7839943c31939455e71d603b3b2d27cf388295f2192b49cba3eb4185bf64149e71341964ad5d2d8905acd1d569621c",
    "signer": "0x80005E1c5cb88Fd03a994eC8a06eFD4c801102D7",
    "userId": "225974748"
  }
}