{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "113333",
    "entityType": "User",
    "nonce": "0xdcd1dd86007ae00c9aaa48bc8e82ccadc14b434eb569314c6dd9eaf5919ab46a",
    "signature": "0x06fc0ed6d398e374ccf73fc2fadabd9b8f00568ec4837d1690eb3160203167ac6a3ac77623b365ada45f2cb0d68242b2e9c6a95aa88a5b79159d0d70836d1a3a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}