{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "23270",
    "entityType": "User",
    "nonce": "0xcb453277979251e06c4a734a3125bf5b50ef71e406917d2b4744869483951aa0",
    "signature": "0x31349ab7889984cc6befa6c7f46fd547c2d55b0de858092a7975c9d31b7119923350da86e606bf6faa2f171d5bcc6d199ec1f73cc093f819a682b2045e0f10951b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}