{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "661329928",
    "entityType": "User",
    "nonce": "0x85576492eb1a189a1481fe92759bc9348e361ca37d048c96f68f6fe43bec86a8",
    "signature": "0x96d0a9638e7a5d0d85247995c84e64b1e050ba10e84653e4f8c6403ce22c24963008c2ae2ed4e274c70301e07e9ae93ce970b2fd372055a75769bd6f9d5b75891c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}