{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171016",
    "entityType": "User",
    "nonce": "0x65c71d0f17a60e0a737151308d44a79ca8187ac00cf6fb21ff16080ffc4c5a8c",
    "signature": "0x2a2c049728939e955ce3afeaa22d9d47905ed1ebdd2e38d681e905bd6620f7d0635cc522c4d4fd6183649d4ef0834021ab1a7119a4d951fdf94aad62161023591b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}