{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158071",
    "entityType": "User",
    "nonce": "0x1566bfeb0ac0674a6913aa2ec0b297303fd14ca0a4a37ebe295df3b9ece3a531",
    "signature": "0xddddd548d31c5006b72c9b1633a91810622fad396bebe063eeaf8b8ce6aab74e15f08d08fcde1212a4b776137e9d3bd354db154761cc03fed0e747443948ab821b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}