{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xbd4d297cb5f763cc09b5ab3684ada84f68a54c228cd1f3ecd0378ae54246bccf",
    "signature": "0x2561672b656e014994e67dc555514b97c919f263ea1b738c770b26acd99b47f451eb66711995e4057cf4c29e1b4c45139107a2b1b89a0c6eaf7cf1a53bd9c1d21b",
    "signer": "0xA3312C0b98998f02d722cB8f7A2C0c28C4370Ca5",
    "userId": "49582319"
  }
}