{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "441864256",
    "entityType": "User",
    "nonce": "0x0fac105bcf2a7da80d9a6d12da3db4fb6e893597fb931a09d90d06e91b81b81c",
    "signature": "0xe0ddeb8c84612ee1c2a6c95b149531c3a33e990ddeacfdd18369f0f68add0a48503df6aad9db900398821bed5ca073faa48e3099b0e668a7ee142dd8ef38baa51b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}