{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152456",
    "entityType": "User",
    "nonce": "0x7a960b2a4f5cd9a3fd33dec52dceb6d82f59e5156a340025d4174d13751e6f5d",
    "signature": "0x6084b6e70904f14c81c0f55d6b9a73fbda8cc733cb2e37f31c369662ea255ffd497727d1fc64cbdf6536e2740e4377ccacbc42b29b8c926defd5db98ca107c121c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}