{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139597",
    "entityType": "User",
    "nonce": "0xc29c8b868d1955f36b242a3dcff1fdc5ac576f6d61b65c4dbc65a36e56588c82",
    "signature": "0xe970cff8f4683c00522ceb4b29302660cfc8034fa663ccc811e28af3c73a3bdf0758759fe7dec9d19f486a20f8fad752ba11976d1058f0bddccfd7c430f325671c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}