{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x510f834ffe136fa3a60fffcad763d6ac1fc94e011c32e8cccd8c70fdf7395c98",
    "signature": "0x81717652b84600f42dee01f2b4aa064bef0cf0dac9f3f144b8da71f9af6ffc55278102ff94cb5edbadbac0987865973b8e340fe6d7fef08d8e29e61ba14732c01c",
    "signer": "0x6c1C8d036b3c0119e31Edb58B17D120E6e91C833",
    "userId": "206524150"
  }
}