{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "351804",
    "entityType": "User",
    "nonce": "0x935c7be5face0e4211d8037c7555feb0cb6b9363193e112543914e5c545e55f3",
    "signature": "0x9df515caa4c00f5978a47a9f558892a7152b451f3291e42fcc6e556f1fcd775f32a0ce90f05663d874a0f01198677357c3adf867bf196fca65931c808ed24a981c",
    "signer": "0x2f6C18419818aA0932B2906f3749322D1CFEd35E",
    "userId": "719970451"
  }
}