{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x47806371578262d6bc57044ad8e1c660ed8d32301332e1fd0148fbf0aad27091",
    "signature": "0x5b3f4204cc2813f08c9c92ad2e052b99f2db68906fa64ea11276e7de850ae3370a9a33d40c3c4518bfaaa0698d61156d598aad7b94770d004a5c692c3ce125601c",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}