{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xa25fb221172701e6addb78d6d23303edd0a6ca088fc5243de43dfcca3adc1395",
    "signature": "0x83f664088df74696b6f773401aad097017377ddbbb2747ee3807113146c707ee6d5d7ad44f1556f0462f2628b3ac32b4be9c9de1804ebbe01a20f5b118fb62311b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}