{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4316acb3453f75b2cc9b1aeb5abc0b69dcfa70bc96f6b1075e6cff547946b160",
    "signature": "0x95cc6bd2d5b1c86d3d5e525150bf3bf10052efeee7c4cf4d7ac564c5ac1d14e113bbe9a30e95ead965ad282dbf11564bb3f7849d8f66f0bf9acbe811203289471c",
    "signer": "0xc2B329a6bad81Ce4678601c83C7F923463663872",
    "userId": "487406085"
  }
}