{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51425",
    "entityType": "User",
    "nonce": "0x318a9ad91c20ed7e6feb5d74cf9536283ccfb442ab7796e200f8c19cefa6de4f",
    "signature": "0x11902979ce8fcfba57df598a355e1ec4e5d98df4ee694fbbca9e257b1007de3c285489bbd2eeb10f60f6f5403d069039cdcc5b9debef5514ba7d41ad6cbed0c71c",
    "signer": "0x91c1cB8b04749B3830411c3517704c393ecB16e3",
    "userId": "289388272"
  }
}