{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x4a5b2660c5b275ffaf10e09845ffda3a9fe3a127d0729acc84c1e45e8cc58352",
    "signature": "0xe39eb53fcce15c53165c99ae84c71b78359647fa10b0ec98c6e1c254055413fc2335039de29b5ab7bdc566065ecc567f72e8febc70328435c270e1b2e2dba38c1c",
    "signer": "0x28Bbb53f14b48eE811b10fD56903fc4D922C6902",
    "userId": "625201833"
  }
}