{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318",
    "entityType": "User",
    "nonce": "0x870b9dbf3f46d9fe804049297908485b1d6e19889b033ad7956c8460d0c7c2cb",
    "signature": "0xbafa4f8f02bcb323fd0a55d69054da0701d811e2d048911bd3aa22b93620585c470e3bdcd861d8f9a1180b889bcf5a1bde82ba1c8b1051606c66008fa9e03a6b1c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}