{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x121d7af93f6c383bd1ec18c754433662eda027761fa74c98d9364e0a7297d750",
    "signature": "0xf4e1d1cf197c6ced322bae151934d8ad2da30715ff1c892533620334f9d86a390d510c18c09a7da0627089c02ed35e163515cad97808c46344f571911d8e54a51c",
    "signer": "0xCb7Aa833f2E005981510243B801a59e2845966ec",
    "userId": "129166385"
  }
}