{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18115",
    "entityType": "User",
    "nonce": "0xb9abcfcda62e6d02f9560dfaee05427649fa4e0e24fb5c797eb95d7de352ea1e",
    "signature": "0xab81177af141e244f80ba574f3a57ab542824d013a65bba9cddaec6160123a376f619cd3051c22d993864e669123811ab21db7f5aa7a538a6657b1a230d9ddea1c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}