{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "693243883",
    "entityType": "User",
    "nonce": "0x69cc35549d5e62c83d83fb32492b123d257a8b5fb494ca7080df8d5d8ee4a6d3",
    "signature": "0x456f0c318c17e84cfd20b30395a85d089b05a201db5fd43857717d75ec567f5973b503caef66b3c26b6bfc63f5d69bd20ff3f5000f226bc789fa9dadee95de171b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}