{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277994",
    "entityType": "User",
    "nonce": "0xed570fa26bda34cef4a7b742c8d905b34b08a49099cccb5becede175d2eed555",
    "signature": "0xd3ddceddb716831bb9a2c76fbfa339e0dcb60eb0350872e17f0f2ec4fa11dfc722ec1936e1289eea64cbd17488c061ed29c74f9af2a8be27af89d157a17330541c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}