{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1789353",
    "entityType": "User",
    "nonce": "0x1d5ba766f8c170a91900c20d03779a5a2febc243115c608c92c800372ccf3042",
    "signature": "0x958d374418d4152e828ea36d9a2dc7e5331a11314b8574feadda64019e82f5013f5197ff2f192416c8a6d00bb0c90eac06bda8785e8caaa0afa6363220d280001b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}