{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x2c0d95cab2d9d00142dec3a78a11a0ac5eeae9287732490a271fba058b6139f4",
    "signature": "0xea73142a2adc1a4db27909d51498cb99f75f8b0f07ee2f9030b32170b323b98b17ec343121e772a6cfaa5c0f2aba372d2b9383f41509c50b3bc65ea4d3160a3a1b",
    "signer": "0x6479d9720713f53dc89A54A1b2812731e2cF028d",
    "userId": "159329749"
  }
}