{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1633",
    "entityType": "User",
    "nonce": "0x689195878645fc37702477dd99150e277f4ec772e6f97cc2d18937b744c3e8ed",
    "signature": "0x9d81a41bc85d07a4377a0059f52cdcfb16fb31e93813a3a7c86dfbc58a3f66e474473c50ad6504ab9576430e6c04e307d8f89cbc8b2d8299ec8f7147dd63302d1b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}