{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x5e5346487207e602b85c56d509f487e15864c8339437073ce0c14b6b1723b6ce",
    "signature": "0x590cddb6414bcdbbe754116222664f78d506c3c2bf80f5c4ce1c512c35edf8683033857ddf18ebbc4c1ae7e4308e9e93cf75894e55637dd7643035106a216e581b",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}