{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0xea9e938b476590070373650444eacedd439506c79abe9de53520daa73257948b",
    "signature": "0xb833625fca632f3d9c520ca4c5b6006b09fe70b16872e900d489894949a75c6a6be330ce54a31e2bcdce1d436e8321142a769b0944d06f33bfcc945f424db0aa1c",
    "signer": "0xA61Ec758eD62E71769712843066E0D2AF592b23d",
    "userId": "556255982"
  }
}