{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "58937",
    "entityType": "User",
    "nonce": "0xa75a62e3aa61435acc6c9ffb7afc5ca0118c73b61cb997a3cf7c30de8c7fb75b",
    "signature": "0x8975226f1845974246877337b0e53ee7839cf4845b0926c4ae6e6c48bb11625416ae9a520cf809641a7fc08435f1d55f515290c72ed5e8453cf7280bc1e0ef881b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}