{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7511",
    "entityType": "User",
    "nonce": "0xf38022598d1bb5a8f2a422b8a3f0e90fe60cef347e6abf19f44c06e2a309e7d9",
    "signature": "0x338f08c1fc069617f7a7b9d929315931791b0f3bcfd171c4345eb9d91331e5ff3b393d91d3f699f9c7de8d0c2699d58b2249103da7c71481b91807bf5aca1ad21c",
    "signer": "0x7b591BD45F737DE2A731fb88D1fB7E15A7593a34",
    "userId": "535988268"
  }
}