{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72975",
    "entityType": "User",
    "nonce": "0x67cc5377fcf2ae1bcb41c8630737acc1924114570bb0c7f927c78018cfafe478",
    "signature": "0xb40c5aebfcf4931deac955e5c957b51cc75fd7cc94f8fec585bb1d8689ee1a225cd1da1cdee0fe00cc02546102fa4db86c5d8fa92d6090c431137000567b0b6f1b",
    "signer": "0x3Ec98fFA47eF7773803b73964753B99Ae2D50f41",
    "userId": "545926315"
  }
}