{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187371",
    "entityType": "User",
    "nonce": "0x2eb4000f867b081c94deeb6347bb45e2d407ec7636c91bdc558b8e945ad9d51c",
    "signature": "0x08c25d37d55405f4cf63d769a336296041af5d49273ca6cfbad8b4defa9752a82b16478114a1ba67537e788042f15e9d2accde0252ac09a6149fd5152810a38c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}