{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847622374",
    "entityType": "User",
    "nonce": "0x73162ddfa08c63395617135e270cc1bb7072077d408453378d10e72be80258af",
    "signature": "0xd1746491a6d0bf262b8cf46cd869ce98d393ccfd6d5e35ddbc6bcc82c991c17804a4db6e252e2a775128a6516d9b203b2847b318f3cd12ce74fe2988dea8fd5d1b",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}