{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388342847",
    "entityType": "User",
    "nonce": "0x5271c3a68884d7a9ec78c9d69950f56f5e1cccca8e35883ad3b0850ccedb2f0c",
    "signature": "0x3f6a09fe51768d2108dd3b67fdea3c791c5fe77a74745144b4346d88b0a656fb18c10072dcf23524ccf4a00681fc1ff6d00810dea628fb916e952c45d92725671b",
    "signer": "0x04926d1129e9DF4622A2DBaC163ae6E1a60Bdf1A",
    "userId": "766107478"
  }
}