{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf301baf7268696bf5ac014cabd6203160dca4fa133f0fa9b5daa8e82bea18831",
    "signature": "0x11542ff62c6134693d809af077e05ce9bc4ff2d78b5c78f0f6b07a60df03535333e0a1b48d0c16df070049c3060759105d2fb22e8f33da9bee5dba15794841c01b",
    "signer": "0xF627730ba5E6709b0F4114739861066CA0AEF2A3",
    "userId": "352220247"
  }
}