{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x15f6754ebc227e2064bdc104871a387453e97f1a1a491037ae6d14f1ca77f082",
    "signature": "0x977c1a17be8127ed81754f034652633b2ea9ba6c87751f586f92e59e4db11bb06f6ec8a653c4f3169191c0d191f11e732b71b51028aaacb879d124555af36aab1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}