{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1717319",
    "entityType": "User",
    "nonce": "0xdd3d7c1f4dc05cdad28dcf413e7a63e77798a1ba861eceaa2a1e09d71dacc3a6",
    "signature": "0x49477f27fdcd6f0acba0684cdb086076454b63b7017f2f86a331fb319abc40287c558e2fd64a814592a8a5f7c04d07711e78122d28211ee1d51a3a70baca784c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}