{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306102391",
    "entityType": "User",
    "nonce": "0xd852eae76342f2464ea5a98dd6b42a12497683ede734ccc40417d58e4db968bd",
    "signature": "0xbb3667931e761795c83251f73c33c73f1bc416adab6b3e62c98f8905809d014558bfa1e677b820dd335d8548eb5dbc29441d6d1c7e541af216bea160fd712b401c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}