{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363755",
    "entityType": "User",
    "nonce": "0x0cc40370cc6eba20d3fa07ffe369715ea29e617755ac8583a0ab628ff294f5fc",
    "signature": "0xc870c4b142b4719ea03d4210c5bf81e5642b05bc3197522319168c5d04c355ec2b926d4f17460e9351c2a6acb1995c1f5bf0e82707a5f72624f4794cbf917c811c",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}