{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75085",
    "entityType": "User",
    "nonce": "0xf7c029e7f0f3bcf653dc758cd4ea59d95f4c043be4c8d419c2cc66c00216edf0",
    "signature": "0xfa7fec34ae034b9504228f8489b0ca4c1eb95178e123e68e1bb107cdb82d45537136fa9e199ef2e4f964942e420a201bf8a616a32614ae920c45a2e0e54f42061c",
    "signer": "0xc88bd025b5DC52Cde584b07899B6E5C854Af4bC0",
    "userId": "781543844"
  }
}