{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133509",
    "entityType": "User",
    "nonce": "0xb698f247760733e8a0f080b7654455dd0c3c36a37c10c1a314eed175855e9826",
    "signature": "0x046a6f1682a624c4dda11dc1fe234e6b84f869d7c2aa467350deda515c0462b71d583c6e8f8c58cf84047622f8b55cc5cc75e85db60b8daafcd29b752553390f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}