{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17430",
    "entityType": "User",
    "nonce": "0xb96155e5ab0d5ad3033099a53369446729cbc18f84f0b9d25a3db8c1f16dd0d5",
    "signature": "0x4e4a9ce5fce2e2401ea912a8296bf500f2d2028bc199451b70d921b59fde012c7e057b20a93b95b107a1f2ce609e1fa2e29603028a5f1c47a8c1edcf8ff9aa3e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}