{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "122774",
    "entityType": "User",
    "nonce": "0xe867539df1ad8d22618a7af597dd95f734c6177ceffd7a04ac4b3765cc4699a4",
    "signature": "0xf5794ee7e7d66a12035713d1a59d04805a9f5efc3c93fb63c64c199ddde4387c5e4aa6821d72d361bf396baa35917999db98d7039836460eec512103a9d995e61c",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}