{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120087188",
    "entityType": "User",
    "nonce": "0x24b6828f9d2ec9c009cdd86a9a7611e09ea65f9d38ec262ecbb30392aadda63f",
    "signature": "0x8637444bcc29c2ec9337bbc4c246f1b211ff056b44f5996af495c25ef211615e5997e357d28120966f6e0842bf6388d6de4db4b5336911f5d1f54996579cd9b51b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}