{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x2e6ba984588baae79fb3cae500217ed2c307b0c9029a238088f4fbb0f4dece62",
    "signature": "0x47b26c7e4a52935cfd5cb48c2b315ce92b3d0d24e13d7b6e3e7ac0e03a6c59ff1470fe5495a073cab90ce6c28a618fd41484a54c9d2f6aa98d25507d4e92f2d61b",
    "signer": "0x49453344e6cf32d3172b6Aa3Fa67e98Efc2d6284",
    "userId": "220496640"
  }
}