{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "426864186",
    "entityType": "User",
    "nonce": "0x51fa3020053628a4d4bfbede979eb74bb12b4961fe16d5ffaa0638f28198244d",
    "signature": "0x373602ce3bcdc5e453fedc2198ed6b793ab7f5008105e93872a8d4652aba6f1a11fffdeedf9b2e0ecaf7cf2a52364e89a6dbbd04ebd20b7ddd991408144dfb8b1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}