{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18932",
    "entityType": "User",
    "nonce": "0x398eebaf0c9704ba18b58dd0f1aeab45ccf86545b2586b43a857ed4ce106d6d3",
    "signature": "0x6ae9b1a2f9628acb10843589a34fbe14abf062a3cadd684587ed3196764c660a7571ffc4e6167c2231a675e6e488f8a1ef4d28d747a6ddeb5b14cb233ee268601b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}