{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1346",
    "entityType": "User",
    "nonce": "0xecf9723587e35ab41a1995d96e520ba546c31f7aa0fdd6c752692d3262133a9d",
    "signature": "0x3de56220826317c18a3539edabef10cce0ad83e2b90fe27938f7a92365241b874a07113335f0aeccd313badd3eef3efcc64fa3294b93e8b7a143e0aca6270d8b1c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}