{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50936",
    "entityType": "User",
    "nonce": "0x0b5725b0c7e050080919af00371b652a4c7d3569d47d4202e0dfec6593b4a045",
    "signature": "0x7f1950cd981272eea9ae1b1b0e673b81e83189161e233afc6754d70e2c460d856cadca6018f8966c0663b969cbecafe354ceb6c3f3710d898bc8248b173177631c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}