{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "693365797",
    "entityType": "User",
    "nonce": "0x9c51816635fa0be5797eb915fff898b8ff91e82cf8017780601dd226bff9a38d",
    "signature": "0x05d3fba74c48bb8cbfc0e78bb16792b0f180cd9f8cd42d2a8b62ca0121cdb0eb52912bd84149d28a48f7f638c586b4eb2a292c0661f970ea6e01c723ff8c83671c",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}